Famous quotes containing the words source and/or cell:
“Knowledge is the most democratic source of power.”
—Alvin Toffler (b. 1928)
“It is plain that there is no separate essence called courage, no cup or cell in the brain, no vessel in the heart containing drops or atoms that make or give this virtue; but it is the right or healthy state of every man, when he is free to do that which is constitutional to him to do.”
—Ralph Waldo Emerson (1803–1882)