Truth can wait, for it has a long life before it.

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  Life is short, and truth works far and lives long: let us speak the truth.

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  To estimate how happy a man is, one should ask not what pleases him, but what troubles him.

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  Solitude is the lot of all outstanding minds.

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  What a man is in himself, what accompanies him when he is alone, what no one can give or take away, is more essential to him than everything he has or what he may be in the eyes of others.

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  Bad books are intellectual poison; they destroy the mind.

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  The safest way of not being very miserable is not to expect to be very happy.

All quotes