Try to learn to breathe deeply, really to taste food when you eat, and when you sleep, really to sleep. Try as much as possible to be wholly alive with all your might, and when you laugh, laugh like hell. And when you get angry, get good and angry. Try to be alive. You will be dead soon enough.
Preindustrial Craftsmanship 
I love that quote, but all the info I find online says it was by William Saroyan.
Could be my mistake. I collect good quotes and I might have cited it wrong. I find it here http://www.goodreads.com/author/show/1455.Ernest_Hemingway as Hemingway. If you know the source, let me know. I’m switching authorship to William Saroyan as it is listed on Wikiquotes. Wow, for internet searches.
Hmm … yeah I don’t know, can’t seem to find a source for it. Interesting.
We’re perpetuating Internet misinformation!