If I am anything, which I highly doubt, I have made myself so by hard work.

I am ashamed to tell you to how many figures I carried these calculations [of Pi], having no other business at the time

Absolute, true and mathematical time, of itself, and from its own nature flows equably without relation to anything external.

Every body persists in a state of rest or of uniform motion in a straight line, unless it is compelled to change that state by forces having impact upon it.

The latest authors, like the most ancient, strove to subordinate the phenomena of nature to the laws of mathematics.

The best and safest way of philosophising seems to be, first to enquire diligently into the properties of things, and to establish those properties by experiences [experiments] and then to proceed slowly to hypotheses for the explanation of them. For hypotheses should be employed only in explaining the properties of things, but not assumed in determining them; unless so far as they may furnish experiments.

Ax: 100 Every thing doth naturally persevere in yt state in wch it is unlesse it bee interrupted by some externall cause, hence... [a] body once moved will always keepe ye same celerity, quantity & determination of its motion.