In the beginning (if there was such a thing), God created Newton's laws of motion together with the necessary masses and forces. This is all; everything beyond this follows from the development of appropriate mathematical methods by means of deduction.

Great spirits have always encountered violent opposition from mediocre minds.

It is my fate to be considered an authority, since I spent my youth rebelling against it.

Physics is essentially an intuitive and concrete science. Mathematics is only a means for expressing the laws that govern phenomena.

I never made one of my discoveries through the process of rational thinking

You can't resolve a dilemma with all the very same mind that made it

It is strange to be known so universally and yet to be so lonely.