Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

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

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

What we know is a drop, what we don't know is an ocean.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

The first idea the child must acquire is that of the difference between good and evil.

There is no authority who decides what is a good idea.

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

A child miseducated is a child lost.

Science is a way of thinking much more than it is a body of knowledge.

The fullness of knowledge only comes through the awareness of ignorance.

Real learning comes about when the competitive spirit has ceased.

Know what you are talking about.

No power and no treasure can outweigh the extension of our knowledge.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

You can never be overdressed or overeducated.

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

Knowledge, Action, Devotion are complementary to each other.

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

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.