Steinbeck

"Beside this tiny stream, wherever enough earth collected for root-hold, colonies of plants grew, wild grape and little palms, maidenhair fern, hibiscus, and tall pampas grass with feathery rods raised above the spike leaves. And in the pool lived frogs and water-skaters, and waterworms crawled on the bottom of the pool. Everything that loved water came to these few shallow places. The cats took their prey there, and strewed feathers and lapped water through their bloody teeth. The little pools were places of life because of the water, and places of killing because of the water, too."

Best American writer of the twentieth century?

My money's on John Steinbeck.

Tell me why I'm wrong.