This is particularly profound because Bob’s own diverse state—as a homosexual—left him, for most of his life, shunned, an outcast, like so many pitiful souls cursed by an ignorant society for being themselves. Now we can see, though, that Bob’s diversity isn’t just obviously one part of the human mosaic; it is one essential for our survival. The more diversity we have—physically, spiritually, intellectually—the better our balance. Just as in the immune system and microbiome. More diversity, more tools.