"The person whose face is between your legs is gonna get lockjaw."

“Good writers are those who keep the language efficient. That is to say, keep it accurate, keep it clear.”

“All religions are precious pearls strung on the golden thread of divinity.”

“For, like almost everyone else in our country, I started out with my share of optimism. I believed in hard work and progress and action, but now, after first being 'for' society and then 'against' it, I assign myself no rank or any limit, and such an attitude is very much against the trend of the times. But my world has become one of infinite possibilities. What a phrase - still it's a good phrase and a good view of life, and a man shouldn't accept any other; that much I've learned underground. Until some gang succeeds in putting the world in a strait jacket, its definition is possibility.”

“Every day Big Government heaps demands and restrictions upon businesses that sink some enterprises, cause others to direct resources away from serving customers and instead toward jumping through hoops of lawyers and regulators, and prevent other operations from ever getting off the ground.”

“I feel that everyone who wants to say anything, do anything, should be able to say anything or do anything, within the limits of not hurting another person.”

“...But I don't think I'm the only person who is tired of books and movies full of paper-doll characters you don't care about, who have no self-respect and no respect for anybody or any institution....And I don't want to sound preachy or Victorian, but I'm tired of amorality in fiction and in real life. Immorality is a fascinating human dilemma that creates suspense for the readers and tension for the characters, but where is the tension in an amoral situation? When people have no personal code, nothing is threatening and nothing is meaningful.”

“Without risk, there can be no growth.”

“Well, the first thing to say is that we've worked hard to maintain compatibility, so that any program written with an earlier version of Mathematica can run without change in 3.0, and any notebook can be converted.”