"People can't, unhappily, invent their mooring posts, their lovers and their friends, anymore than they can invent their parents. Life gives these and also takes them away and the great difficulty is to say Yes to life."

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The man whose whole life is spent in performing a few simple operations, of which the effects are perhaps always the same, or very nearly the same, has no occasion to exert his understanding or to exercise his invention in finding out expedients for removing difficulties which never occur. He naturally loses, therefore, the habit of such exertion, and generally becomes as stupid and ignorant as it is possible for a human creature to become.

— Adam Smith