Freedom of opinion can only exist when the government thinks itself secure.

The essence of life is doing things for their own sakes.

The Axiom of Choice is necessary to select a set from an infinite number of socks, but not an infinite number of shoes.

The good life is one inspired by love and guided by knowledge.

Even in civilized mankind faint traces of monogamous instinct can be perceived.

I wish to propose for the reader's favourable consideration a doctrine which may, I fear, appear wildly paradoxical and subversive. The doctrine in question is this: that it is undesirable to believe a proposition when there is no ground whatever for supposing it true.

I can't tell whether I am living in a dream or a nightmare.