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

This most beautiful system of the sun, planets and comets could only proceed from the counsel and dominion of an intelligent and powerful Being. And if the fixed stars are the centres of other like systems, these, being formed by the like wise counsel, must be all subject to the dominion of One; especially since the light of the fixed stars is of the same nature with the light of the sun.

The best way to understanding is a few good examples.

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.

I do not feign hypotheses.

An object that is at rest will tend to stay at rest. An object that is in motion will tend to stay in motion.

A body in motion tends to stay in motion unless acted on by an outside force.