We laugh, cry, and feel that bond we humans share when a person crosses over from sharp individual existence to the more diffuse persistence of collective influence, memory, and love, their microbiota shuffling off in search of other mortal coils, new living collectives to animate for awhile. ~ David Grinspoon in his memorial of Lynn Margulis in Earth in Human Hands
Here's another gem from Grinspoon, on his reflection of discovering the fact of greenhouse effect as a wondrous example of earth's system of life:
"The satisfaction has its own specific flavour. You feel that you have really figured out some small part of nature, not conquering it, but learning to hear its music, and to sing along."