Truth is the offspring of silence and meditation.

Every action has an equal and opposite reaction

Those qualities of bodies that cannot be intended and remitted [i.e., qualities that cannot be increased and diminished] and that belong to all bodies on which experiments can be made should be taken as qualities of all bodies universally.

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

God in the beginning formed matter in solid, massy, hard, impenetrable, movable particles, of such sizes and figures, and with such other properties, and in such proportion to space, as most conduced to the end for which he formed them.

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

I do not feign hypotheses.