"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 thin…"

"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. It is perseverance in the pursuit of studies …"

"A man, as a general rule, owes very little to what he is born with — a man is what he makes of himself."

"I have always been a great believer in luck, and I find that the harder I work, the more I have of it."

"I have always been a firm believer in the power of hard work and perseverance."