For the first half of geological time our ancestors were bacteria. Most creatures still are bacteria, and each one of our trillions of cells is a colony of bacteria. ↗
It is ironic that the one thing that all religions recognize as separating us from our creator, our very self-consciousness, is also the one thing that divides us from our fellow creatures. It was a bitter birthday present from evolution. ↗
There is in us a lyric germ or nucleus which deserves respect; it bids a man to ponder or create; and in this dim corner of himself he can take refuge and find consolations which the society of his fellow creatures does not provide. ↗
You see, every creature alive on the earth today represents an unbroken line of life that stretches back to the first primitive organism to appear on this planet; and that is about three billion years. ↗