A single test which proves some piece of theory wrong is more valuable than a hundred tests showing that idea might be true.

The limits of the possible can only be defined by going beyond them into the impossible.

I don't believe in astrology; I'm a Sagittarius and we're skeptical.

The only way to define your limits is by going beyond them.

The greatest tragedy in mankind's entire history may be the hijacking of morality by religion.

The moon is the first milestone on the road to the stars.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

Any sufficiently advanced technology is indistinguishable from magic.

There is hopeful symbolism in the fact that flags do not wave in a vacuum.

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.

Until we get rid of religion, we won't be able to conduct the search for God.

I like best to have one book in my hand, and a stack of others on the floor beside me, so as to know the supply of poppy and mandragora will not run out before the small hours.

Indie authors write, design, sell. Like magic, skip one and you make must read vanish.

Among many other things, genius implies the ability to reduce the complicated to the simple, and to recognize inclusive structural principals.

Tiptoe through the tulips with me.

Guard your roving thoughts with a jealous care, for speech is but the dialer of thoughts, and every fool can plainly read in your words what is the hour of your thoughts.

A computer terminal is not some clunky old television with a typewriter in front of it. It is an interface where the mind and body can connect with the universe and move bits of it about.

Well, I sort of don't trust anybody who doesn't like Led Zeppelin.

I'm going to win so much money this year, my caddie will make the top twenty money-winners list.

No one is any more or any less important than you are.

Silence is a place of great power and healing.