“Tact is the knack of making a point without making an enemy.” “Gravity explains the motions of the planets, but it cannot explain who sets the planets in motion.” “Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things.” “No great discovery was ever made without a bold guess.”
What is Newton's famous quote?
"To any action there is always an opposite and equal reaction; in other words, the actions of two bodies upon each other are always equal and always opposite in direction."