The thing that most people call 'genius' I do not believe in.

Many of us think of salespeople as people travelling around with sample kits. Instead, we are all salesman, every day of our lives.

I didn't take up shorthand with any idea of becoming a professional at it. It merely appeared to me to be a good thing to know - something that might come in handy.

The inventor, the man with a unique, specialized talent, is the only real super-genius. But he is so rare that he needs no consideration.

Bare hands grip success better than kid gloves.

In my own house I rigged up a laboratory and studied chemistry in the evenings, determined that there should be nothing in the manufacture of steel that I would not know. Although I had received no technical education I made myself master of chemistry and of the laboratory, which proved of lasting value.

The man who has done his best has done everything. The man who has done less than his best has done nothing.