All my discoveries have been made in answer to prayer.

I consider my greatest accomplishment to be lifelong celibacy.

My Design in this Book is not to explain the Properties of Light by Hypotheses, but to propose and prove them by Reason and Experiments: In order to which, I shall premise the following Definitions and Axioms.

Nature is pleased with simplicity. And nature is no dummy.

To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me

No being exists or can exist which is not related to space in some way. God is everywhere, created minds are somewhere, and body is in the space that it occupies; and whatever is neither everywhere nor anywhere does not exist. And hence it follows that space is an effect arising from the first existence of being, because when any being is postulated, space is postulated.

I can see so far because I stood on the shoulders of giants.