Blind metaphysical necessity, which is certainly the same always and every where, could produce no variety of things. All that diversity of natural things which we find suited to different times and places could arise from nothing but the ideas and will of a Being, necessarily existing.
Isaac NewtonIf I have ever made any valuable discoveries, it has been due more to patient attention, than to any other talent
Isaac NewtonSir Isaac Newton was asked how he discovered the law of gravity. He replied, "By thinking about it all the time.
Isaac Newton