It is a beautiful and delightful sight to behold the body of the Moon.
It vexes me when they would constrain science by the authority of the Scriptures, and yet do not consider themselves bound to answer reason and experiment.
We cannot teach people anything we can only help them discover it within themselves.
Nature is relentless and unchangeable, and it is indifferent as to whether its hidden reasons and actions are understandable to man or not.
The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
All truths are easy to understand once they are discovered the point is to discover them.
I think that in the discussion of natural problems we ought to begin not with the Scriptures, but with experiments and demonstrations.
Minds with fixed ideas are like granite: They can never be penetrated with soft words and gentle persuasions.
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.
He who looks the higher is the more highly distinguished, and turning over the great book of nature (which is the proper object of philosophy) is the way to elevate one's gaze.
A stone thrown up into the air is bound to fall down, and absolute power is like a huge stone thrown up into the air.
And, believe me, if I were again beginning my studies, I should follow the advice of Plato and start with mathematics.
(T)he increase of known truths stimulates the investigation, establishment, and growth of the arts.
I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
