I don't have much to add that others won't. I met him a few times. He seemed like a lovely, sweet man who treated everyone like they were someone. A few years ago, I introduced Ms. Ragu, who didn't grow up with American culture or baseball to him and his career, and she fell in love with him, and she references him a lot. We use Yogiisms all the time to crack each other up. She was really sad this morning. She was really sad for him last year when Carmen Berra died.
RIP to a great player, and someone who seemed like he had figured out how to be human (the better parts of it).