Human behavior flows from three main sources: desire, emotion, and knowledge
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.
I like poems you can tack all over with a hammer and there are no hollow places.
Industrialize or perish.
Necessity is the mother of invention.
Don't worry that children never listen to you; worry that they are always watching you.
Liberty without Learning is always in peril and Learning without Liberty is always in vain.
Those who fail to learn the lessons of history are doomed to repeat them.
Know what you are talking about.
The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.
The books that the world calls immoral are books that show the world its own shame.
Real knowledge is to know the extent of one's ignorance.
It is what you read when you don't have to that determines what you will be when you can't help it.
Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.
Investigate, educate and organize.
It is better to know how to learn than to know.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
To every action there is always an equal and opposite or contrary, reaction
Men are born ignorant, not stupid. They are made stupid by education.