If you allow men to use you for your own purposes, they will use you for theirs.
A doubtful friend is worse than a certain enemy. Let a man be one thing or the other, and we then know how to meet him.
We would often be sorry if our wishes were gratified.
It is foolish to try to imitate the skills of others.
Gratitude is the sign of noble souls.
One who steals has no right to complain if he is robbed.