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.

To command their professors of astronomy to refute their own observations is to command them not to see what they do see and not to understand what they do understand.

To understand the Universe, you must understand the language in which it's written, the language of Mathematics.

I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forego their use.

The prohibition of science would be contrary to the Bible, which in hundreds of places teaches us how the greatness and the glory of God shine forth marvelously in all His works, and is to be read above all in the open book of the heavens.

All truths are easy to understand once they are discovered; the point is to discover them.

It is a beautiful and delightful sight to behold the body of the Moon.