Don't learn to do, but learn in doing.
What we know is a drop, what we don't know is an ocean.
The deepest sin against the human mind is to believe things without evidence.
The real solution lies in a world in which charity will have become unnecessary.
Opinion is the medium between knowledge and ignorance.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
Education is a human right with immense power to transform. On its foundation rest the cornerstones of freedom, democracy and sustainable human development.
I have no special talents. I am only passionately curious.
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
A little knowledge that acts is worth infinitely more than much knowledge that is idle.
In order to stave off covetouness, greed, and spite, citizens world over must be educated.
I am a part of everything that I have read.
The most important part of teaching is to teach what it is to know.
A witty saying proves nothing.
Many much-learned men have no intelligence.
Men are born ignorant, not stupid. They are made stupid by education.
There is no authority who decides what is a good idea.
Reading without reflecting is like eating without digesting.
Science is not only a disciple of reason but, also, one of romance and passion.