To be happy, one only must be able to confront, which is to say, experience, those things that are. Unhappiness is only this: the inability to confro… - L. Ron Hubbard

"Man," said Terl, "is an endangered species."

Rate of change is this mathematics known as Calculus. … Now I hope you understand this, because I've never been able to make head nor tail of it. It must be some sort of a Black Magic operation, started out by the Luce cult — some immoral people who are operating up in New York City, Rockefeller Plaza — been thoroughly condemned by the whole society. Anyway, their rate-of-change theory — I've never seen any use for that mathematics, by the way — I love that mathematics, because it — I asked an engineer, one time, who was in his 6th year of engineering, if he'd ever used Calculus, and he told me yeah, once, once I did, he said. When did you use it? And he said I used it once. Let me see, what did you use it on? Oh yeah. Something on the rate-of-change of steam particles in boilers. And then we went out and tested it and found the answer was wrong.

This is useful knowledge. With it the blind again see, the lame walk, the ill recover, the insane become sane and the sane become saner. By its use the thousand abilities Man has sought to recover become his once more.