Tact is the art of making a point without making an enemy.

Hypotheses non fingo. I frame no hypotheses.

Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things.

Now the smallest Particles of Matter may cohere by the strongest Attractions, and compose bigger Particles of weaker Virture.... There are therefore Agents in Nature able to make the Particles of Bodies stick together by very strong Attraction. And it is the Business of experimental Philosophy to find them out.

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

God who gave Animals self motion beyond our understanding is without doubt able to implant other principles of motion in bodies [which] we may understand as little. Some would readily grant this may be a Spiritual one; yet a mechanical one might be showne, did not I think it better to pass it by.

When the adversaries of Erasmus had got the Trinity into his edition, they threw by their manuscript as an old almanac out of date.