Frege has the merit of ... finding a third assertion by recognising the world of logic which is neither mental nor physical.

To a mind of sufficient intellectual power, the whole of mathematics would appear trivial, as trivial as the statement that a four-footed animal is an animal.

Thought is subversive and revolutionary, destructive and terrible, Thought is merciless to privilege, established institutions, and comfortable habit. Thought is great and swift and free.

The luxury to disparage freedom is the privilege of those who already possess it.

A sense of duty is useful in work but offensive in personal relations. People wish to be liked, not to be endured with patient resignation.

To expect a personality to survive the disintegration of the brain is like expecting a cricket club to survive when all of its members are dead.

Patriotism is the willingness to kill and be killed for trivial reasons.