None can teach admirably if not loving his task.
Ignorance is innocence - stupidity comes with experience
A true teacher defends his students against his own personal influences.
Your real influence is measured by your treatment of yourself.
The wisest and best are repulsive, if they are characterized by repulsive manners. Politeness is an easy virtue, costs little, and has great purchasing power.
A birthday is a good time to begin a new; throwing away the old habits, as you would old clothes, and never putting them again.