Knowledge becomes evil if the aim be not virtuous.

Evil being the root of mystery, pain is the root of knowledge.

If there were no bad people, there would be no good lawyers.

The deepest sin against the human mind is to believe things without evidence.

The only good is knowledge and the only evil is ignorance.

If you can't explain it simply, you don't understand it well enough.

The real solution lies in a world in which charity will have become unnecessary.

In mathematics you don't understand things. You just get used to them.

The schools ain't what they used to be and never was.

I think that kids have a greater capacity for processing things than we give them credit for.

Education is the most powerful weapon which you can use to change the world.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

Dare to think for yourself.

I am so clever that sometimes I don't understand a single word of what I am saying.

Intelligence plus character-that is the goal of true education.

A child miseducated is a child lost.

Science is what we have learned about how to keep from fooling ourselves.

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.

Knowing others is wisdom, knowing yourself is Enlightenment.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

The most savage controversies are those about matters as to which there is no good evidence either way.