What is a weed? A plant whose virtues have not yet been discovered.

Do not go where the path may lead, go instead where there is no path and leave a trail.

Nothing great was ever achieved without enthusiasm.

A man's growth is seen in the successive choirs of his friends.

When a man is pushed, tormented, defeated, he has a chance to learn something.

Beauty without expression tires.

Nature always wears the colors of the spirit.

Life Is a Journey, Not a Destination.

Every sunset brings the promise of a new dawn

To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

How good would a Good Samaritan be, if a Good Samaritan would only intend to do good?

Science is not a game in which arbitrary rules are used to decide what explanations are to be permitted.

The word liberal distinguishes whatever nourishes the mind and spirit from the training which is merely practical or professional or from the trivialities which are no training at all.

The cooler days have brought a wistful mood upon him. The smell of coalsmoke in the air at night. Old times, dead years. For him such memories are bitter ones.

The bright days of my youthThey were full of hopeThe great journey that was before me thenWas what was destined to be, bye bye.Now I'm sorrowful,The day is long past.Alas and woe, oh.

Sometimes the odds are against you-the director doesn't know what the hell he's doing, or something falls apart in the production, or you're working with an actor who's just unbearable.

You don't have to feel like a waste of space, your original can not be replaced

I'm not a science fiction writer, I'm a physicist. These are scientists who are making the future in their laboratories.

If you go to space, you'll look down and see no national boundaries. You'll never see the gods people are killing each other over, but they're incredibly real.

Bette Davis in All About Eve was huge for me. Her acting was staggering.