If others would think as hard as I did, then they would get similar results.

I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.

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

To explain all nature is too difficult a task for any one man or even for any one age. 'Tis much better to do a little with certainty, and leave the rest for others that come after you, than to explain all things by conjecture without making sure of anything.

The greatest lesson in life is to know that even fools are right sometimes.

The more I learn, the less I realize I know.