Truth is the offspring of silence and meditation.

Philosophy is such an impertinently litigious lady that a man had as good be engaged in lawsuits as have to do with her.

I have presented principles of philosophy that are not, however, philosophical but strictly mathematical-that is, those on which the study of philosophy can be based. These principles are the laws and conditions of motions and of forces, which especially relate to philosophy.

Truth is the offspring of silence and meditation.

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.

No sciences are better attested than the religion of the Bible.

Therefore, the causes assigned to natural effects of the same kind must be, so far as possible, the same.