I never did anything by accident, nor did any of my inventions come by accident; they came by work.

Nothing that's good works by itself, you've got to make the damn thing work.

When I have fully decided that a result is worth getting I go ahead of it and make trial after trial until it comes.

I think that Ingersoll had all the attributes of a perfect man, and, in my opinion, no finer personality ever existed. Judging from the past, I cannot help thinking that the intention of the Supreme Intelligence that rules the world is to ultimately make such a type of man universal.

Sticking to it is the genius.

Do the thing and the power will come.

The United States, and other advanced nations, will someday be able to produce instruments of death so terrible the world will be in abject terror of itself and its ability to end civilization.... Such war-making weapons should be developed - but only for purposes of discovery and experimentation