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

What goes up must come down.

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

Absolute, true and mathematical time, of itself, and from its own nature flows equably without relation to anything external.

You sometimes speak of gravity as essential and inherent to matter. Pray do not ascribe that notion to me, for the cause of gravity is what I do not pretend to know, and therefore would take more time to consider of it.

If I had stayed for other people to make my tools and things for me, I had never made anything.

The wonderful arrangement and harmony of the cosmos would only originate in the plan of an almighty omniscient being. This is and remains my greatest comprehension.