Bertrand Russell

Bertrand Russell
Bertrand Arthur William Russell, 3rd Earl Russell, OM, FRSwas a British philosopher, logician, mathematician, historian, writer, social critic, political activist and Nobel laureate. At various points in his life he considered himself a liberal, a socialist, and a pacifist, but he also admitted that he had "never been any of these things, in any profound sense". He was born in Monmouthshire into one of the most prominent aristocratic families in the United Kingdom...
NationalityBritish
ProfessionPhilosopher
Date of Birth18 May 1872
Those who in principle oppose birth control are either incapable of arithmetic or else in favour of war, pestilence and famine as permanent features of human life.
Upon hearing via Littlewood an exposition on the theory of relativity: To think I have spent my life on absolute muck.
A widespread belief is more often likely to be foolish than sensible.
The three main extra-rational activities in modern life are religion, war, and love. all these are extra-rational, but love is not anti-rational, that is to say, a reasonable man may reasonably rejoice in its existence
Indemnity for the past and security for the future.
I am not myself in any degree ashamed of having changed my opinions.
I am delighted to know that Principia Mathematica can now be done by machinery. . . I am quite willing to believe that anything in deductive logic can be done by machinery.
Formality Thus the absence of all mention of particular things or properties in logic or pure mathematics is a necessary result of the fact that this study is, as we say, "purely formal".
Analytic It is clear that the definition of "logic" or "mathematics" must be sought by trying to give a new definition of the old notion of "analytic" propositions.
At the age of eleven, I began Euclid, with my brother as my tutor. This was one of the great events of my life, as dazzling as first love. I had not imagined there was anything so delicious in the world. From that moment until I was thirty-eight, mathematics was my chief interest and my chief source of happiness.
Ordinary language is totally unsuited for expressing what physics really asserts, since the words of everyday life are not sufficiently abstract. Only mathematics and mathematical logic can say as little as the physicist means to say.
Mathematics is, I believe, the chief source of the belief in eternal and exact truth, as well as a sensible intelligible world.
Zeno was concerned with three problems... These are the problem of the infinitesimal, the infinite, and continuity.
Calculus required continuity, and continuity was supposed to require the infinitely little; but nobody could discover what the infinitely little might be.