A farmer is looking for some extra help on the farm, so he hires a farmhand. On the first day he puts him to work pounding in fence posts, it's absolutely grueling work under the hot sun, but the farmhand excels at this. He sets up more fence posts than any other farmhand ever has in a day, more than the farmer ever could. The farmer is astounded at how fast the hand worked.
So, the next day, the farmer sets the farmhand up harvesting corn. It's tedious work, there are rows and rows and rows of corn and all day the farmhand is plucking ears of corn in an endlessly monotonous task. At the end of the day, the farmhand delivers a massive collection of corn. He's done it again - he's worked harder and better than anyone could ever do. At this rate the farmer is going to run out of work!
So on the third day, the farmer is trusting the farmhand to make decisions. He leads him into the root cellar and shows him the potatoes. There's a whole heap of them, a weeks worth of work. The farmer says, "I want you to sort through these guys, put the good ones in a pile here, we'll sell them at market, put the ok ones here, we'll sell them wholesale, and put the bad ones here, we'll take them to the compost."
Come the end of the day, the farmhand comes out of the cellar and shakes his head. "Well," he says. "I quit." The farmer is aghast.
"You can't quit! What's the matter? You did such good work with the fenceposts and the corn!"
"Well," the farmhand says. "The fenceposts and the corn were all well and good, but these potatoes, I can't take it...it's just decision after decision after decision!"