Man has no moral instinct. He is not born with moral sense. You were not born with it, I was not - and a puppy has none. We acquire moral sense, when we do, through training, experience, and hard sweat of the mind.

There is no conclusive evidence of life after death, but there is no evidence of any sort against it. Soon enough you will know, so why fret about it?

Once upon a time there was a Martian named Valentine Michael Smith.

The most important lesson in the writing trade is that any manuscript is improved if you cut away the fat.

Take care of the cojones and the frijoles will take care of themselves. Try to have getaway money - but don't be fanatic about it.

When any government, or any church for that matter, undertakes to say to its subjects, This you may not read, this you must not see, this you are forbidden to know, the end result is tyranny and oppression no matter how holy the motives.

The power to tax, once conceded, has no limits; it continues until it destroys.