I Can Measure The Motion Of Bodies

Every Body Persists In A State Of Rest Or Of Uniform Motion In A Straight Line, Unless It Is Compelled To Change That State By Forces Having Impact Upon It.

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.

For The Rays, To Speak Properly, Have No Colour. In Them There Is Nothing Else Than A Certain Power And Disposition To Stir Up A Sensation Of This Colour Or That.

I Consider My Greatest Accomplishment To Be Lifelong Celibacy.

The Synthesis Consists In Assuming The Causes Discovered And Established As Principles, And By Them Explaining The Phænomena Proceeding From Them, And Proving The Explanations.