A single lie destroys a whole reputation for integrity.
Wisdom and courage make mutual contributions to greatness.
To overvalue something is a form of lying.
The passions are the humors of the mind, and the least excess sickens our judgment. If the disease spreads to the mouth, your reputation will be in danger.
There is none who cannot teach somebody something, and there is none so excellent but he is excelled.
A wise man gets more use from his enemies than a fool from his friends.