I feign no hypotheses.

All my discoveries have been made in answer to prayer.

A Vulgar Mechanick can practice what he has been taught or seen done, but if he is in an error he knows not how to find it out and correct it, and if you put him out of his road he is at a stand. Whereas he that is able to reason nimbly and judiciously about figure, force, and motion, is never at rest till he gets over every rub. (from a letter dated 25 May, 1694)

We account the Scriptures of God to be the most sublime philosophy.

Trials are medicines which our gracious and wise Physician prescribes because we need them; and he proportions the frequency and weight of them to what the case requires. Let us trust his skill and thank him for his prescription.

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

It is the weight, not numbers of experiments that is to be regarded.