"I have not failed. I've just found 10,000 ways that won't work."

Thomas Edison

"And what, Socrates, is the food of the soul? Surely, I said, knowledge is the food of the soul."

Plato

"Food for the body is not enough. There must be food for the soul."

Dorothy Day

"Fast sex, like fast food, is cheap, but it doesn't nourish the body - or the soul."  

Suzanne Fields (isn't she the cookie lady?)