Absolute, true and mathematical time, of itself, and from its own nature flows equably without relation to anything external.
Isaac NewtonTo derive two or three general Principles of Motion from Phรฆnomena, and afterwards to tell us how the Properties and Actions of all corporeal Things follow from those manifest Principles, would be a very great step in Philosophy.
Isaac NewtonPictures, propagated by motion along the fibers of the optic nerves in the brain, are the cause of vision.
Isaac NewtonI have been much amused at ye singular phenomena resulting from bringing of a needle into contact with a piece of amber or resin fricated on silke clothe. Ye flame putteth me in mind of sheet lightning on a small-how very small-scale.
Isaac NewtonThe best and safest way of philosophising seems to be, first to enquire diligently into the properties of things, and to establish those properties by experiences [experiments] and then to proceed slowly to hypotheses for the explanation of them. For hypotheses should be employed only in explaining the properties of things, but not assumed in determining them; unless so far as they may furnish experiments.
Isaac Newton