If you can't explain it simply, you don't understand it well enough.
Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.
Knowledge becomes evil if the aim be not virtuous.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
The books that the world calls immoral are books that show the world its own shame.
The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.
Know what you are talking about.
Reading without reflecting is like eating without digesting.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
The most important part of teaching is to teach what it is to know.
What is now proved was once only imagined.
Science is not only a disciple of reason but, also, one of romance and passion.
No man's knowledge here can go beyond his experience.
Science is what we have learned about how to keep from fooling ourselves.
Education is a human right with immense power to transform. On its foundation rest the cornerstones of freedom, democracy and sustainable human development.
I am a part of everything that I have read.
The first principle is that you must not fool yourself and you are the easiest person to fool.
Liberty without Learning is always in peril and Learning without Liberty is always in vain.
The first idea the child must acquire is that of the difference between good and evil.
Educate the children and it won't be necessary to punish the men.
If there were no bad people, there would be no good lawyers.