For work that really amounts to anything, first-class men are wanted.

If you make yourself first-class in anything, no matter what your condition or circumstances, no matter what your race or color, you will be in demand.

If you are a king in your calling, no matter how humble it may be, nothing can keep you from success.
The world does not demand that you be a physician, a lawyer, a farmer, or a merchant; but it does demand that whatever you do undertake, you will do it right, will do it with all your might and with all the ability you possess.

It demands that you be a master in your line.
When Daniel Webster, who had the best brain of his time, was asked to make a speech on some question at the close of a Congressional session, he replied: "I never allow myself to speak on any subject until I have made it my own.

I haven't time to do that in this case, hence, I must refuse to speak on the subject." Dickens would never consent to read before an audience until he had thoroughly prepared his selection.
Balzac, the great French novelist, sometimes worked a week on a single page.
Macready, when playing before scant audiences in country theaters in England, Ireland, and Scotland, always played as if he were before the most brilliant audiences in the great metropolises of the world.
Thoroughness characterizes all successful men.