Age doesn’t make us childish, as they say; It finds that we’re still children.
A useless life is an early death.
A man must pay dear for his errors if he wishes to get rid of them, and even then he is lucky.
With knowledge grows doubt.
Wisdom lies only in truth.
Whoso shrinks from ideas ends by having nothing but sensations.
Whoever wishes to keep a secret must hide the fact that he possesses one.
Which is the best government? That which teaches us to govern ourselves.
When young, one is confident to be able to build palaces for mankind, but when the time comes one has one’s hands full just to be able to remove their trash.
When prudence is only fear in disguise, its scruples cannot be conquered.
When Nature begins to reveal her open secret to a man, he feels an irresistible longing for her worthiest interpreter, Art.
When intelligent and sensible people despise knowledge in their old age, it is only because they have asked too much of it and of themselves.