Each [of my wives] was jealous and resentful of my preoccupation with business. Yet none showed any visible aversion to sharing in the proceeds.

Without the element of uncertainty, the bringing off of even, the greatest business triumph would be dull, routine, and eminently unsatisfying.

A sense of thrift is essential to success in business. The businessman must discipline himself to practice economy whenever possible, in his personal life as well as his business affairs.

There may be some substitute for hard facts, but if there is, I have no idea what it can be.

Formula for success: rise early, work hard, strike oil.

I'd rather have 1% of the effort of 100 men than 100% of my own effort.

....remember, a billion dollars isn't worth what it used to be.