I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

A child educated only at school is an uneducated child.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

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

Liberty without Learning is always in peril and Learning without Liberty is always in vain.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

The first principle is that you must not fool yourself and you are the easiest person to fool.

Seek knowledge from the cradle to the grave.

Show me a family of readers, and I will show you the people who move the world.

Know what you are talking about.

Knowledge, Action, Devotion are complementary to each other.

If the facts don't fit the theory, change the facts.

Just because I don't care doesn't mean I don't understand.

The more I read, the more I acquire, the more certain I am that I know nothing.

Reading without reflecting is like eating without digesting.

All stable processes we shall predict. All unstable processes we shall control.

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

I cannot live without books.

Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.