“The past is all around us. Darwin’s biggest contribution was to show us that all individual organisms are connected through time. …The fact that we are connected through space and time shows that life is a unitary phenomenon, no matter how we express that fact. We are not one living organism, but we constitute a single ecosystem with many differentiated parts. I don’t see this as a contradiction, because parts and wholes are nestled in each other.” - Lynn Margulis, evolutionary theorist and biologist