The other part of the true religion is our duty to man. We must love our neighbour as our selves, we must be charitable to all men for charity is the….

The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is i….

From what has been said it is also evident, that the Whiteness of the Sun's Light is compounded all the Colours wherewith the several sorts of Rays w….

Whence arises all that order and beauty we see in the world?.

Definition of inertia: 'The vis insita, or innate force of matter, is a power of resisting by which every body, as much as in it lies, endeavours to ….

What is there in places empty of matter? and Whence is it that the sun and planets gravitate toward one another without dense matter between them? Wh….

Atheism is so senseless. When I look at the solar system, I see the earth at the right distance from the sun to receive the proper amounts of heat an….

The monarchy of the Greeks for want of an heir was broken into several kingdoms; four of which, seated to the four winds of heaven, were very eminent….

A good watch may serve to keep a recconing at Sea for some days and to know the time of a Celestial Observ[at]ion: and for this end a good Jewel watc….

I do not know what I may appear to the world, but to myself I seem to have been only a boy playing on the seashore..

To me there has never been a higher source of earthly honor or distinction than that connected with advances in science..

I shall not mingle conjectures with certainties..

Plato is my friend, Aristotle is my friend, but my greatest friend is truth..

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

Do not several sorts of Rays make Vibrations of several bignesses, which according to their bigness excite Sensations of several Colours, much after ….

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….

A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not….

If I have done the public any service, it is due to my patient thought..

Are not all Hypotheses erroneous, in which Light is supposed to consist in Pression or Motion, propagated through a fluid Medium? For in all these Hy….

That one body may act upon another at a distance through a vacuum, without the mediation of any thing else, by and through which their action and for….

By such deductions the law of gravitation is rendered probable, that every particle attracts every other particle with a force which varies inversely….