Upton Sinclair

“ You go into them pits, the first thing you know you'll get a fall of rock on your head, and the nigger's pay won't be no good to you."
They came to the saloon and entered. Hal noted that a silence fell within, and every one nodded and watched. It was pleasant to be seen going out with one's boss.
O'Callahan, the proprietor, came forward with his best society smile and joined them, and at Hal's invitation they ordered whiskies. "No, you stick to your job," continued the pit-boss. "You stay by it, and when you've learned to manage mules, I'll make a boss out of you, and let you manage men." ”