A secret is a weapon and a friend.
What the heart knows today the head will understand tomorrow.
Any fool can wash himself, but every wise man knows that it is an unnecessary labour, for nature will quickly reduce him to a natural and healthy dirtiness again.
We get wise by asking questions, and even if these are not answered, we get wise, for a well-packed question carries its answer on its back as a snail carries its shell.
Let the past be content with itself, for man needs forgetfulness as well as memory.
A sword, a spade, and a thought should never be allowed to rust.
Curiosity will conquer fear even more than bravery will.
Women and birds are able to see without turning their heads, and that is indeed a necessary provision for they are both surrounded by enemies.
Originality does not consist in saying what no one has ever said before, but in saying exactly what you think yourself.
To work is nothing; the king on his throne, the priest kneeling before the Holy Altar, all people in all places had to work, but no person at all need be a servant.