He who cannot resist temptation is not a man. Whoever yields to temptation debases himself with a debasement from which he can never arise.
Doing nothing for others is the undoing of ourselves.
Be careful never to retire to rest in a room not properly ventilated.
A human being is not attaining his full heights until he is educated.
Virtue is an angel, but she is a blind one, and must ask Knowledge to show her the pathway that leads to her goal.
Genius may conceive but patient labor must consummate.