"For if we could not see the motions of the stars, we should not know that there were any stars."

"No man can have a right to anything, unless he has a power to defend it."

"The universe is corporeal; all that is real is material, and what is not material is not real."

"The value of a man, is as of all other things, his price; that is, so much as would be given for the use of his power."

"And consequently, the knowledge of the consequences of words, is called SCIENCE. And though a man should now and then have the good fortune to get any thing by conjecture, without reasoning; yet becau…"