Well, there are many religions, but I suppose they all worship the same God.
Hitler is an outcome of Rousseau.
What the world needs is not dogma but an attitude of scientific inquiry.
What has human happiness to do with morals? The object of morals is not to make people happy.
You are a wicked motorcar, and I shall not give you any more petrol until you go.
Great God in Boots! – the ontological argument is sound!
There are three ways of securing a society that shall be stable as regards population. The first is that of birth control, the second that of infanticide or really destructive wars, and the third that of general misery except for a powerful minority.
Unrestricted nationalism is, in the long run, incompatible with world peace.
Calculus required continuity, and continuity was supposed to require the infinitely little; but nobody could discover what the infinitely little might be.
Mathematics is, I believe, the chief source of the belief in eternal and exact truth, as well as a sensible intelligible world.
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.
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.
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”.
I am not myself in any degree ashamed of having changed my opinions.
Indemnity for the past and security for the future.
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.
A widespread belief is more often likely to be foolish than sensible.
Upon hearing via Littlewood an exposition on the theory of relativity: To think I have spent my life on absolute muck.
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.
A proverb is one man’s wit and all men’s wisdom.