Why is the human skull as dense as it is? Nowadays we can send a message around the world in one-seventh of a second, but it takes years to drive an idea through a quarter-inch of human skull.

You can't have a better tomorrow if you are thinking about yesterday all the time.

High achievement always takes place in the framework of high expectation.

An inventor is simply a fellow who doesn't take his education too seriously.

Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.

A problem well stated is a problem half-solved.

You will never stub your toe standing still. The faster you go, the more chance there is of stubbing your toe, but the more chance you have of getting somewhere.

The only time you mustn't fail is the last time you try.

here is a great difference between knowing a thing and understanding it. You can know a lot and not really understand anything.

The world hates change, yet it is the only thing that has brought progress.

If you're doing something the same way you have been doing it for ten years, the chances are you are doing it wrong.

In search of that beat that my heart skipped when I first saw your beautiful soul...

Goodbye worry, fear, doubt, and guilt. Hello grace.

Truly, Mallow yearned to know everything. Curiosity was part of her, like her short blond hair and bitten fingernails.

No matter how lonely you get or how many birth announcements you receive the trick is not to get frightened. There's nothing wrong with being alone.

Science fiction is a kind of archaeology of the future.

I was an adopted child of my grandparents, and I don’t know how I can ever express my gratitude for that because my parents would have been a mess.

The U.S. is, to a very unusual extent, a business-run society.

Tonight, I feel like my whole body is made out of memories. I'm a mix-tape, a cassette that's been rewound so many times you can hear the fingerprints smudged on the tape.

I do not ever want to be a huge star.

The self is not the individual body or mind, but rather that aspect deep inside each individual person that knows the truth.