Imagination is more important than knowledge.
Necessity is the mother of invention.
The most important part of teaching is to teach what it is to know.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
Investigate, educate and organize.
A cynic is a man who knows the price of everything, and the value of nothing.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.
No man's knowledge here can go beyond his experience.
The first idea the child must acquire is that of the difference between good and evil.
Intelligence plus character-that is the goal of true education.
Knowledge becomes evil if the aim be not virtuous.
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.
There is no authority who decides what is a good idea.
The great difficulty in education is to get experience out of ideas.
Evil being the root of mystery, pain is the root of knowledge.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
What we know is a drop, what we don't know is an ocean.
A thought is an idea in transit.
Knowing is not enough; we must apply. Willing is not enough; we must do.
A child miseducated is a child lost.