My principal business is giving commercial value to the brilliant - but misdirected - ideas of others.

The stomach is the only part of man which can be fully satisfied. The yearning of man's brain for new knowledge and experience and for more pleasant and comfortable surroundings never can be completely met. It is an appetite which cannot be appeased.

An average American loves his family. If he has any love left over for some other person, he generally selects Mark Twain.

Never be discouraged, because every wrong turn attempt, when left behind you, is another step forward taking you closer to your goals.

Success is the result of hard work.

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

Today, I am wondering what would have happened to me by now, if, fifty years ago, some fluent talker had converted me to the theory of the eight-hour day and convinced me that it was not fair to my fellow-workers to put forth my best efforts in my work? I am glad that the eight-hour day had not been invented when I was a young man. If my life had been made up of eight-hour days, I don't believe I could have accomplished a great deal.