A man who has committed a mistake and doesn’t correct it, is committing another mistake.
By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.
It does not matter how slowly you go, as long as you do not stop.
A good man does not give orders, but leads by example
The superior man is modest in his speech, but exceeds in his actions.