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Just as a well-filled day brings blessed sleep, so a well-employed life brings a blessed death

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Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.

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Fine gold is recognized when it is tested.

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Just as courage is the danger of life, so is fear its safeguard.

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That which can be lost cannot be deemed riches. Virtue is our true wealth and the true reward of its possessor; it cannot be lost, it never deserts us...more

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All knowledge which ends in words will die as quickly as it came to life, with the exception of the written word: which is its mechanical part.

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Nothing should be so greatly feared as empty fame.

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You can have no dominion greater or less than that over yourself.

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Our life is made by the death of others.

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All our knowledge has its origin in our perceptions

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He who does not value life does not deserve it.

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Just as courage imperils life, fear protects it.

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As a well-spent day brings happy sleep, so a life well spent brings happy death.