What Goes Up Must Come Down.

The Way To Chastity Is Not To Struggle Directly With Incontinent Thoughts But To Avert The Thoughts By Some Imployment, Or By Reading, Or Meditating On Other Things.

...from The Same Principles, I Now Demonstrate The Frame Of The System Of The World.

Impressed Force Is The Action Exerted On A Body To Change Its State Either Of Resting Or Of Moving Uniformly Straight Forward.

If Others Would Think As Hard As I Did, Then They Would Get Similar Results.

No Old Men (excepting Dr. Wallis) Love Mathematicks.