Learning from Hemingway

I'm reading "A Moveable Feast" by Ernest Hemingway, who is able to give such detail with so few words. He says Ezra Pound taught him not to use adjectives.
The vignettes of his early life in 1920s Paris include conversations with those who thought his writing too lean, too stark. He didn't apologize.
As many writers know, it's harder to be brief than to write too long. There's a scene in the film "A River Runs Through It," where Norman gets English lessons from his minister father. Each time he turns his essay in, the father marks through several words, hands it back to him and says to shorten it. After several revisions, the writing is down to less than half a page. Then Norman goes fishing.
The easiest way to make writing more concise is to omit needless words. But, what next?
In today's instant messaging world where sound bites become the news and people don't always take time to read the whole article, it's important to get the message across quickly. The trick is learning to do that. Reading Hemingway seems like a good start.