Hate always sells well, but for repeat trade and the long pull happiness is sounder merchandise.
Robert A. HeinleinYou got the impression that he never needed to sleep - just ten-thousand-mile checkups and dust him off occasionally.
Robert A. HeinleinI don't see why human people make such a heavy trip out of sex. It isn't anything complex, it is simply the best thing in life, even better than food.
Robert A. HeinleinDo not confuse "duty" with what other people expect of you; they are utterly different. Duty is a debt you owe to yourself to fulfill obligations you have assumed voluntarily. Paying that debt can entail anything from years of patient work to instant willingness to die. Difficult it may be, but the reward is self-respect.
Robert A. Heinlein