I am a believer in unconscious cerebration. The brain is working all the time, though we do not know it. At night it follows up what we think in the daytime. When I have worked a long time on one thing, I make it a point to bring all the facts regarding it together before I retire; I have often been surprised at the results... We are thinking all the time; it is impossible not to think.

Perseverance must have some practical end, or it does not avail the man possessing it. A person without a practical end in view becomes a crank or an idiot. Su…

You cannot force ideas. Successful ideas are the result of slow growth. Ideas do not reach perfection in a day, no matter how much study is put upon them.

I begin my work at about nine or ten o'clock in the evening and continue until four or five in the morning. Night is a more quiet time to work. It aids thought.

By always thinking unto them. ... I keep the subject constantly before me and wait till the first dawnings open little by little into the full light.

There are a thousand thoughts lying within a man that he does not know till he takes up the pen to write.

I wouldn't have said off-hand that I had a subconscious mind, but I suppose I must without knowing it, and no doubt it was there, sweating away diligently at t…