Education is the most powerful weapon which you can use to change the world.
To educate a person in the mind but not in morals is to educate a menace to society.
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.
Knowing is not enough; we must apply. Willing is not enough; we must do.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Education is a system of imposed ignorance.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
What we know is a drop, what we don't know is an ocean.
An investment in knowledge pays the best interest.
I decided to teach because I think that any person who studies philosophy has to be involved actively.
No power and no treasure can outweigh the extension of our knowledge.
The highest activity a human being can attain is learning for understanding, because to understand is to be free.
The first idea the child must acquire is that of the difference between good and evil.
Knowledge, Action, Devotion are complementary to each other.
It is possible to fly without motors, but not without knowledge and skill.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
Books are for people who wish they were somewhere else.
The schools ain't what they used to be and never was.
What is now proved was once only imagined.