“The greatness of humanity is not in being human, but in being humane.”

“Human beings have their great chance in the novel.”

“I believe in recognizing every human being as a human being--neither white, black, brown, or red; and when you are dealing with humanity as a family there's no question of integration or intermarriage. It's just one human being marrying another human being or one human being living around and with another human being.”

“Evolution brings human beings. Human beings, through a long and painful process, bring humanity.”

“We are not human beings on a spiritual path, but spiritual beings on a human path.”

“Despite the Great Chain of Being's traditional ranking of humans between animals and angels, there is no evolutionary justification for the common assumption that evolution is somehow 'aimed' at humans, or that humans are 'evolution's last word'.”