Love. Fall in love and stay in love. Write only wh...

Science fiction is any idea that occurs in the head and doesn't exist yet, but soon will, and will change everything for everybody, and nothing will ever be the same again. As soon as you have an idea that changes some small part of the world you are writing science fiction. It is always the art of the possible, never the impossible.

The best scientist is open to experience and begins with romance - the idea that anything is possible.

If we listened to our intellect, we'd never have a love affair. We'd never have a friendship. We'd never go into business, because we'd be cynical. Well, that's nonsense. You've got to jump off cliffs all the time and build your wings on the way down.

There is a fountain of youth: it is your mind, your talents, the creativity you bring to your life and the lives of people you love. When you learn to tap this source, you will truly have defeated age.

Age does not protect you from love. But love, to some extent, protects you from age.

Each moment of a happy lover's hour is worth an age of dull and common life.

True terror is to wake up one morning and discover that your high school class is running the country.

Probably the happiest period in life most frequently is in middle age, when the eager passions of youth are cooled, and the infirmities of age not yet begun as we see that the shadows, which are at morning and evening so large, almost entirely disappear at midday.

I saw how many people were poor and how many kids my age went to school hungry in the morning, which I don't think most of my contemporaries in racially segregated schools in the South thought very much about at the time.

A truly great book should be read in youth, again in maturity and once more in old age, as a fine building should be seen by morning light, at noon and by moonlight.