...from the same principles, I now demonstrate the frame of the System of the World.

Errors are not in the art but in the artificers.

No great discovery was ever made without a bold guess.

What we know is a drop, what we don't know is an ocean.

We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances.

By such deductions the law of gravitation is rendered probable, that every particle attracts every other particle with a force which varies inversely as the square of the distance. The law thus suggested is assumed to be universally true.

God created everything by number, weight and measure.