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

"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."

"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."

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