The books that the world calls immoral are books that show the world its own shame.
I do not know how to teach philosophy without becoming a disturber of the peace.
Education is a human right with immense power to transform. On its foundation rest the cornerstones of freedom, democracy and sustainable human development.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
You can never learn less, you can only learn more.
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
Courage, conviction and confidence.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
Science is what we have learned about how to keep from fooling ourselves.
There is no authority who decides what is a good idea.
A little knowledge is a dangerous thing. So is a lot.
I am indebted to my father for living, but to my teacher for living well.
You can never be overdressed or overeducated.
There is nothing more awful, insulting, and depressing than banality.
The ability to observe without evaluating is the highest form of intelligence.
Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
It is possible to fly without motors, but not without knowledge and skill.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.