Leaving the complications of the human breakfast-table out of account, in an elemental sense, the egg only exists to produce the chicken. But the chicken does not exist only in order to produce another egg. He may also exist to amuse himself, to praise God, and even to suggest ideas to a French dramatist. Being a conscious life, he is, or may be, valuable in himself.
Modern science is necessarily a double-edged tool, a tool that cuts both ways. ... There is no doubt that a Zeppelin is a wonderful thing; but that did not prevent it from becoming a horrible thing.
Earnest Freethinkers need not worry themselves so much about the persecutions of the past. Before the Liberal idea is dead or triumphant we shall see wars and persecutions the like of which the world has never seen.
Ideas are dangerous, but the man to whom they are least dangerous is the man of ideas. He is acquainted with ideas, and moves among them like a lion-tamer. Ideas are dangerous, but the man to whom they are most dangerous is the man of no ideas. The man of no ideas will find the first idea fly to his head like wine to the head of a teetotaller.
There are two kinds of charlatan: the man who is called a charlatan, and the man who really is one. The first is the quack who cures you; the second is the highly qualified person who doesn't.
The most important fact about the subject of education is that there is no such thing. Education is not a subject and it does not deal in subjects. It is instead the transfer of a way of life.
The materialist is sure that history has been simply and solely a chain of causation, just as the [lunatic] is quite sure that he is simply and solely a chicken. Materialists and madmen never have doubts.