You sometimes speak of gravity as essential and inherent to matter. Pray do not ascribe that notion to me, for the cause of gravity is what I do not pretend to know, and therefore would take more time to consider of it.
Isaac NewtonA man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.
Isaac NewtonI do not think that this [the universe] can be explained only by natural causes, and are forced to impute to the wisdom and ingenuity of an intelligent.
Isaac NewtonEvery particle of matter is attracted by or gravitates to every other particle of matter with a force inversely proportional to the squares of their distances.
Isaac Newton