It is not my words that I polish, but my ideas.
Words, like glass, obscure when they do not aid vision.
Imitate time; it destroys everything slowly; it undermines, it wears away, it detaches, it does not wrench.
We should always keep a corner of our heads open and free, that we may make room for the opinions of our friends. Let us have heart and head hospitality.
To teach is to learn twice.
He who has not the weakness of friendship has not the strength.