Quotes from The Problems of Philosophy

Bertrand Russell ·  116 pages

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“Some care is needed in using Descartes' argument. "I think, therefore I am" says rather more than is strictly certain. It might seem as though we are quite sure of being the same person to-day as we were yesterday, and this is no doubt true in some sense. But the real Self is as hard to arrive at as the real table, and does not seem to have that absolute, convincing certainty that belongs to particular experiences.”
― Bertrand Russell, quote from The Problems of Philosophy


“Is there any knowledge in the world which is so certain that no reasonable man could doubt it?”
― Bertrand Russell, quote from The Problems of Philosophy


“Philosophy, though unable to tell us with certainty what is the true answer to the doubts which it raises, is able to suggest many possiblities which enlarge our thoughts and free them from the tyranny of custom. Thus, while diminishing our feeling of certainty as to what things are, it greatly increases our knowledge as to what the may be; it removes the somewhat arrogant dogmatism of those who have never travelled into the region of liberating doubt, and it keeps alive our sense of wonder by showing familar things in an unfamilar aspect”
― Bertrand Russell, quote from The Problems of Philosophy


“Whoever wishes to become a philosopher must learn not to be frightened by absurdities.”
― Bertrand Russell, quote from The Problems of Philosophy


“Philosophy, if it cannot answer so many questions as we could wish, has at least the power of asking questions which increase the interest of the world, and show the strangeness and wonder lying just below the surface even in the commonest things of daily life.”
― Bertrand Russell, quote from The Problems of Philosophy



“The man who has no tincture of philosophy goes through life imprisoned in the prejudices derived from common sense, from the habitual beliefs of his age or his nation, and from convictions which have grown up in his mind without the cooperation or consent of his deliberate reason.”
― Bertrand Russell, quote from The Problems of Philosophy


“The man who has fed the chicken every day throughout its life at last wrings its neck instead, showing that more refined views as to the uniformity of nature would have been useful to the chicken.”
― Bertrand Russell, quote from The Problems of Philosophy


“Has the universe any unity of plan or purpose, or is it a fortuitous concourse of atoms? Is conciousness a permanent part of the universe, giving hope of indefinite growth in wisdom, or is it a transitory accident on a small planet on which life must ultimately become impossible? Are good and evil of importance to the universe or only to man?”
― Bertrand Russell, quote from The Problems of Philosophy


“What we firmly believe, if it is true, is called knowledge, provided it is either intuitive or inferred (logically or psychologically) from intuitive knowledge from which it follows logically. What we firmly believe, if it is not true, is called error. What we firmly believe, if it is neither knowledge nor error, and also what we believe hesitatingly, because it is, or is derived from, something which has not the highest degree of self-evidence, may be called probable opinion. Thus the greater part of what would commonly pass as knowledge is more or less probable opinion.”
― Bertrand Russell, quote from The Problems of Philosophy


“All knowledge, we find, must be built up upon our instinctive beliefs, and if these are rejected, nothing is left.”
― Bertrand Russell, quote from The Problems of Philosophy



“Among these surprising possibilities, doubt suggests that perhaps there is no table at all. Philosophy, if it cannot answer so many questions as we could wish, has at least the power of asking questions which increase the interest of the world, and show the strangeness and wonder lying just below the surface even in the commonest things of daily life.”
― Bertrand Russell, quote from The Problems of Philosophy


“Berkeley retains the merit of having shown that the existence of matter is capable of being denied without absurdity.”
― Bertrand Russell, quote from The Problems of Philosophy


“there is no such thing as matter at all, and that the world consists of nothing but minds and their ideas. Hylas”
― Bertrand Russell, quote from The Problems of Philosophy


“[F]or all refutation must begin with some piece of knowledge which the disputants share; from blank doubt, no argument can begin.”
― Bertrand Russell, quote from The Problems of Philosophy


“Every proposition which we can understand must be composed wholly of constituents with which we are acquainted.”
― Bertrand Russell, quote from The Problems of Philosophy



“a vast collection of electric charges in violent motion.”
― Bertrand Russell, quote from The Problems of Philosophy


“Philosophy, if it cannot answer so many questions as we could wish, has at least the power of asking questions which increase the interest of the world, and show the strangeness and wonder lying just below the surface even in the commonest things of daily life.”
― Bertrand Russell, quote from The Problems of Philosophy


“Assim, para recapitular a nossa discussão do valor da filosofia: a filosofia é de estudar não por causa de quaisquer respostas definitivas às suas questões, dado que nenhumas respostas definitivas podem, em regra, ser conhecidas como verdadeiras, mas antes por causa das próprias questões; porque estas questões alargam a nossa concepção do que é possível, enriquecem a nossa imaginação intelectual e diminuem a confiança dogmática que fecham a mente contra a especulação; mas acima de tudo porque, através da grandeza do universo que a filosofia contempla, a mente também se torna grandiosa, e torna-se capaz dessa união com o universo que constitui o seu bem maior.”
― Bertrand Russell, quote from The Problems of Philosophy


“There is a widespread philosophical tendency towards the view which tells us that Man is the measure of all things, that truth is man-made, that space and time and the world of universals are properties of the mind, and that, if there be anything not created by the mind, it is unknowable and of no account for us. This view, if our previous discussions were correct, is untrue; but in addition to being untrue, it has the effect of robbing philosophic contemplation of all that gives it value, since it fetters contemplation to Self. What it calls knowledge is not a union with the not-Self, but a set of prejudices, habits, and desires, making an impenetrable veil between us and the world beyond. The man who finds pleasure in such a theory of knowledge is like a man who never leaves the domestic circle for fear his word might not be law.”
― Bertrand Russell, quote from The Problems of Philosophy


“Physical science, through the medium of inventions, is useful to innumerable people who are wholly ignorant of it; thus the study of physical science is to be recommended, not only, or primarily, because of the effect on the student, but rather because of the effect on mankind in general. Thus utility does not belong to philosophy. If the study of philosophy has any value at all for others than students of philosophy, it must be only indirectly, through its effects upon the lives of those who study it.”
― Bertrand Russell, quote from The Problems of Philosophy



“to a great extent, the uncertainty of philosophy is more apparent than real: those questions which are already capable of definite answers are placed in the sciences, while those only to which, at present, no definite answer can be given, remain to form the residue which is called philosophy.”
― Bertrand Russell, quote from The Problems of Philosophy


“The world of being is unchangeable, rigid, exact, delightful to the mathematician, the logician, the builder of metaphysical systems, and all who love perfection more than life. The world of existence is fleeting, vague, without sharp boundaries, without any clear plan or arrangement, but it contains all thoughts and feelings, all the data of sense, and all physical objects, everything that can do either good or harm, everything that makes any difference to the value of life and the world. According to our temperaments, we shall prefer the contemplation of the one or of the other.”
― Bertrand Russell, quote from The Problems of Philosophy


“Whatever can be thought of is an idea in the mind of the person thinking of it; therefore nothing can be thought of except ideas in minds; therefore anything else is inconceivable, and what is inconceivable cannot exist.”
― Bertrand Russell, quote from The Problems of Philosophy


“Thus every principle of simplicity urges us to adopt the natural view, that there really are objects other than ourselves and our sense-data which have an existence not dependent upon our perceiving them.”
― Bertrand Russell, quote from The Problems of Philosophy


“This seems plainly absurd; but whoever wishes to become a philosopher must learn not to be frightened by absurdities. One”
― Bertrand Russell, quote from The Problems of Philosophy



“We can be sure, he [Kant] says, that anything we shall ever experience must show the characteristics affirmed of it in our a priori knowledge, because these characteristics are due to our own nature, and therefore nothing can ever come into our experience without acquiring these characteristics.”
― Bertrand Russell, quote from The Problems of Philosophy


“The 'practical' man, as this word is often used, is one who recognizes only the material needs, who realizes that men must have food for the body, but is oblivious of the necessity of providing food for the mind.”
― Bertrand Russell, quote from The Problems of Philosophy


“It is sometimes said that 'light is a form of wave-motion', but this is misleading, for the light which we immediately see, which we know directly by means of our senses, is not a form of wave-motion, but something quite different—something which we all know if we are not blind, though we cannot describe it so as to convey our knowledge to a man who is blind. A wave-motion, on the contrary, could quite well be described to a blind man, since he can acquire a knowledge of space by the sense of touch; and he can experience a wave-motion by a sea voyage almost as well as we can. But this, which a blind man can understand, is not what we mean by light: we mean by light just that which a blind man can never understand, and which we can never describe to him.”
― Bertrand Russell, quote from The Problems of Philosophy


“It has been argued that we have reason to know that the future will resemble the past, because what was the future has constantly become the past, and has always been found to resemble the past, so that we really have experience of the future, namely of times which were formerly future, which we may call past futures.”
― Bertrand Russell, quote from The Problems of Philosophy


About the author

Bertrand Russell
Born place: in Trellech, Monmouthshire, Wales, The United Kingdom
Born date May 18, 1872
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