A good teacher protects his pupils from his own influence.
He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.
Early to bed and early to rise, Makes a man healthy, wealthy, and wise.
Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.
It is hard to fight desire; but to control it is the sign of a reasonable man.
Simplicity is the ultimate sophistication.
Don't criticize what you don't understand, son. You never walked in that man's shoes.
Don't expect to build up the weak by pulling down the strong.
The greatest deception men suffer is from their own opinions.
There are things known and there are things unknown, and in between are the doors of perception.
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
It is not the strength, but the duration, of great sentiments that makes great men.
Between stimulus and response there is a space. In that space is our power to choose our response. In our response lies our growth and our freedom.
Judge not unless you judge yourself.
A precedent embalms a principle.
It takes a lot of courage to show your dreams to someone else.
No man has any natural authority over his fellow men.
The noblest pleasure is the joy of understanding.
Attitude, not Aptitude, determines Altitude.
Do not reveal what you have thought upon doing, but by wise council keep it secret being determined to carry it into execution.
Good advice is always certain to be ignored, but that's no reason not to give it.