Such a beautiful yet heartbreaking tribute to Dave Goldberg from Sheryl Sandberg: https://www.facebook.com/sheryl/posts/10155493238390177 It reminds us of what, of course, we all know, that life can change so unexpectedly in an instant and that we must live our lives conscious of that fact. We mustn't be morose, we mustn't let that awareness depress us...on the contrary, we ...