Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.

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.

I love great music and art, but I think 'cubist' songs and paintings are hideous.

Because ideas have to be original only with regard to their adaptation to the problem at hand, I am always extremely interested in how others have used used them.

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

To do much clear thinking a person must arrange for regular periods of solitude when they can concentrate and indulge the imagination without distraction.

Religion is all bunk.