Come Judgment Day, we may find that Mumbo Jumbo the God of t... - Robert A. Heinlein, Stranger in a Strange Land

"Love is that condition in which the happiness of another person is essential to your own."

"Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy - in fact, they are almost incompatible; one emotion hardly leaves room for the other."

"If you've got the truth you can demonstrate it. Talking doesn't prove it."

"But goodness alone is never enough. A hard, cold wisdom is required for goodness to accomplish good. Goodness without wisdom always accomplishes evil."

"But when they began handing out doctorates for comparative folk dancing and advanced fly-fishing, I became too stink in’ proud to use the title. I won’t touch watered whiskey and I take no pride in watered-down degrees."