This speech from George Saunders has been all over the web, but here's an excerpt in case you missed it:
"What I regret most in my life are failures of kindness. Those moments when another human being was there, in front of me, suffering, and I responded…sensibly. Reservedly. Mildly. Or, to look at it from the other end of the telescope: Who, in your life, do you remember most fondly, with the most undeniable feelings of warmth? Those who were kindest to you, I bet. It’s a little facile, maybe, and certainly hard to implement, but I’d say, as a goal in life, you could do worse than: Try to be kinder."