"An illusion of depth often occurs if a blockhead is a muddlehead at the same time" — Karl Kraus

Conservatives are not necessarily stupid, but most stupid people are conservatives

Every man is a damn fool for at least five minutes every day; wisdom consists in not exceeding the limit

The wise does at once what the fool does at last

It is one of the blessings of old friends that you can afford to be stupid with them

The greatest of follies is to sacrifice health for any other kind of happiness

It is human nature to think wisely and act foolishly

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