The great difficulty in education is to get experience out of ideas.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
What sculpture is to a block of marble, education is to a human soul.
Courage, conviction and confidence.
Make it a rule never to give a child a book you would not read yourself.
Knowing is not enough; we must apply. Willing is not enough; we must do.
A little knowledge is a dangerous thing. So is a lot.
No man's knowledge here can go beyond his experience.
Necessity is the mother of invention.
It is what you read when you don't have to that determines what you will be when you can't help it.
If one cannot enjoy reading a book over and over again, there is no use in reading it at all.
Education is a system of imposed ignorance.
I have no special talents. I am only passionately curious.
Better know nothing than half-know many things.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
A little knowledge that acts is worth infinitely more than much knowledge that is idle.
Just because I don't care doesn't mean I don't understand.
The real solution lies in a world in which charity will have become unnecessary.
Opinion is the medium between knowledge and ignorance.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.