You will never succeed while smarting under the drudgery of your occupation, if you are constantly haunted with the idea that you could succeed better in something else.

There can be no great courage where there is no confidence or assurance, and half the battle is in the conviction that we can do what we undertake.

There never will be a trust in excellence or a combination in superiority. As long as you can do a thing a little better than anybody else can do it, you need no bond or trade-mark to protect the product of your brains.

You must bring every particle of your energy, unanswerable resolution, your best efforts, your persistent industry to your task or the best will not come out of you. You must back up your ambition by your whole nature, by unbounded enthusiasm and a determination to win which knows no failure.

The Creator has not given you a longing to do that which you have no ability to do.

Play is as necessary to the perfect development of a child as sunshine is to the perfect development of a plant.

When a man feels throbbing within him the power to do what he undertakes as well as it can possibly be done, this is happiness, this is success.