I don't expect to retire. Every man must work, that's his natural destiny.

There is only a "marginal difference" separating those who are truly successful and those who merely do well.Whether you believe you can do something or not, you are right!

I invented nothing new, I simply assembled the discoveries of other men behind whom there was centuries of work.

People can have the Model T in any color – so long as it’s black.

I do not believe a man can ever leave his business. He ought to think of it by day and dream of it by night.

Two classes of people lose money; those who are too weak to guard what they have; those who win money by trick. They both lose in the end.

I did not say history was bunk. It was bunk to me . . I did not need it very bad.