It is a cursed evil to any man to become as absorbed in any subject as I am in mine

You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.

Earning happiness means doing good and working, not speculating and being lazy. Laziness may look inviting, but only work gives you true satisfaction.

Any fact facing us is not as important as our attitude toward it, for that determines our success or failure

From each according to his abilities, to each according to his needs.

Many people would no more think of entering journalism than the sewage business - which at least does us all some good.

No tears in the writer, no tears in the reader. No surprise in the writer, no surprise in the reader.

Good actions give strength to ourselves and inspire good actions in others.

I'm a greater believer in luck, and I find the harder I work the more I have of it

It is the set of the sails, not the direction of the wind that determines which way we will go.

The way to screw up somebody's life is to give them what they want.

To know what people really think, pay regard to what they do, rather than what they say.

Success is steady progress toward one's personal goals

Old Professors never die, they just lose their faculties.

Be quick, but don't hurry.

People refuse to take chances in business, because they fear the criticism which may follow if they fail.

Listen if you want to be heard

I am easily satisfied with the very best.

There is but one dependable method of accumulating and legally holding riches, and that is by rendering useful service.

I never did a day's work in my life. It was all fun.

Don't ever promise more than you can deliver, but always deliver more than you promise.