The man who is a pessimist before 48 knows too much; if he is an optimist after it, he knows too little.

Mark Twain

Similar quotes

Beware of the night, child. All cats are black in the dark.

I have learned to use the word impossible with the greatest caution.

Werner von Braun

Think before acting; and whilst acting, still think.

Even from a foe a man may learn wisdom.

It is easy to see the faults of others, but difficult to see one's own faults. One shows the faults of others like chaff winnowed in the wind, but one conceals one's own faults as a cunning gambler conceals his dice.

That the birds of worry and care fly over your head, this you cannot change, but that they build nests in your hair, this you can prevent.

Chinese Proverb

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