See first, think later, then test. But always see first. Otherwise you will only see what you were expecting. Most scientists forget that.

Marvin started his ironical humming again. Zaphod hit him and he shut up.

First we thought the PC was a calculator. Then we found out how to turn numbers into letters with ASCII — and we thought it was a typewriter. Then we discovered graphics, and we thought it was a television. With the World Wide Web, we've realized it's a brochure.

Pardon me for breathing, which I never do any way so I don’t know why I bother to say it, oh God, I’m so depressed.

Alone of all the races on earth, they seem to be free from the 'Grass is Greener on the other side of the fence' syndrome, and roundly proclaim that Australia is, in fact, the other side of that fence.

There was a terribly ghastly silence. There was a terribly ghastly noise. There was a terribly ghastly silence.

We demand rigidly defined areas of doubt and uncertainty!