Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.

This most beautiful system [The Universe] could only proceed from the dominion of an intelligent and powerful Being.

There are more sure marks of authenticity in the Bible that in any profane history.

To me there has never been a higher source of earthly honour or distinction than that.

I can calculate the motion of heavenly bodies, but not the madness of people.

He who thinks half-heartedly will not believe in God; but he who really thinks has to believe in God.

They who search after the Philosopher's Stone [are] by their own rules obliged to a strict and religious life.

To explain all nature is too difficult a task for any one man or even for any one age.

And to every action there is always an equal and opposite or contrary, reaction.

Gravity explains the motions of the planets, but it cannot explain who sets the planets in motion.