No one asks how to motivate a baby. A baby naturally explores everything it can get at, unless restraining forces have already been at work. And this tendency doesn't die out, it's wiped out.

A fourth-grade reader may be a sixth-grade mathematician. The grade is an administrative device which does violence to the nature of the developmental process.

Some of us learn control, more or less by accident. The rest of us go all our lives not even understanding how it is possible, and blaming our failure on being born the wrong way.

At this very moment enormous numbers of intelligent men and women of goodwill are trying to build a better world. But problems are born faster than they can be solved.

The only geniuses produced by the chaos of society are those who do something about it. Chaos breeds geniuses. It offers a man something to be a genius about.

A piece of music is an experience to be taken by itself.

A scientist may not be sure of the answer, but he's often sure he can find one. And that's a condition which is clearly not enjoyed by philosophy.

The tender sentiment of the 'one and only' has less to do with constancy of heart than with singleness of opportunity.

Something doing every minute' may be a gesture of despair--or the height of a battle against boredom.

I love being high. High on Life, High on Love, High on Hope, and High on Faith.

We will always find ourselves in trouble when we get comfortable with things as they are.

This life is like a swimming pool. You dive into the water, but you can't see how deep it is.

A man's memory may almost become the art of continually varying and misrepresenting his past, according to his interest in the present.

Recreational number theory [...] is that part of number theory that is too difficult to study.

Only when God was said to have died did various leaders, professions and sectors risk pushing themselves forward as successors.

I think it is good for youngsters to see me at 45 still jogging around the track. If me being here gives them a boost then thats great.

There are occasions that I love to be fashionable and enjoy, you know? But the work day of a mother doesn't include a hair making team or any consideration of your shoe.

It was the first time I'd ever said the words to another person, and the sound of them broke open my heart.

Mr. Sand, do you think it's possible to fall in love in the space of a single day?" He smiled. "I wouldn't know. I only fall in love at night. Never lasts beyond breakfast, though.