Editors at The American Scholar have published a list of what they believe to be the “Ten Best Sentences” from literature. There are more suggestions sent in from their readers. I like the eleventh one they threw in as a bonus:
Like the waters of the river, like the motorists on the highway, and like the yellow trains streaking down the Santa Fe tracks, drama, in the shape of exceptional happenings, had never stopped there. —Truman Capote, In Cold Blood
Here's Roy Peter Clark at Poynter.org, on why they're so great.