Give a man health and a course to steer, and he'll never stop to trouble about whether he's happy or not.

I make a fortune from criticizing the policy of the government, and then hand it over to the government in taxes to keep it going.

You do not settle whether an argument is justified by merely showing that it is of some use. The distinction is not between useful and useless experiments but between barbarous and civilized behaviour. Vivisection is a social evil because if it advances human knowledge, it does so at the expense of human character.

A man's interest in the world is only the overflow from his interest in himself. When you are a child your vessel is not yet full;so you care for nothing but your own affairs. When you grow up, your vessel overflows; and you are a politician, a philosopher, or an explorer and adventurer. In old age the vessel dries up: there is no overflow: you are a child again.

The truth is the one thing that nobody will believe.

It is very doubtful whether man is enough of a political animal to produce a good, sensible, serious and efficient constitution. All the evidence is against it.

You can lose a man like that by your own death, but not by his.