Love is that condition in which the happiness of another per... - Robert A. Heinlein, Stranger in a Strange Land

"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."

"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."

"No matter what I said they insisted on thinking of God as something outside themselves. Something that yearns to take every indolent moron to His breast and comfort him. The notion that the effort has to be their own . . . and that the trouble they are in is all their own doing . . . is one that they can't or won't entertain."

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