The atheistic idea is so nonsensical that I do not see how I can put it in words.

We all confidently believe that there are at present, and have been from time immemorial, many worlds of life besides our own. . . . [This] may seem wild, and visionary; all I maintain is that it is not unscientific.

Vortices of pure energy can exist and, if my theories are right, can compose the bodily form of an intelligent species.

Heavier-than-air flying machines are impossible.

There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.

When you are face to face with a difficulty, you are up against a discovery.

Nothing can be more fatal to progress than a too confident reliance on mathematical symbols; for the student is only too apt to take the easier course, and consider the formula not the fact as the physical reality.