If you could see the earth illuminated when you were in a place as dark as night, it would look to you more splendid than the moon.

They know that it is human nature to take up causes whereby a man may oppress his neighbor, no matter how unjustly. ... Hence they have had no trouble in finding men who would preach the damnability and heresy of the new doctrine from the very pulpit.

One can understand nature only when one has learned the language and the signs in which it speaks to us; but this language is mathematics and these signs are methematical figures.

Wine is sunlight, held together by water.

You cannot teach a person something he does not already know, you can only bring what he does know to his awareness.

Measure what is measurable, and make measurable what is not so.

Names and attributes must be accommodated to the essence of things, and not the essence to the names, since things come first and names afterwards.