Man has risen, not fallen. He can choose to develop his capacities as the highest animal and to try to rise still farther, or he can choose otherwise. The choice is his responsibility, and his alone. There is no automatism that will carry him upward without choice or effort and there is no trend solely in the right direction. Evolution has no purpose; man must supply this for himself. The means to gaining right ends involve both organic evolution and human evolution, but human choice as to what are the right ends must be based on human evolution.
I embrace the concept of enlightened self-interest - that in doing something for others, people also reap profound benefits for themselves. It might involve a little bit of sacrifice and discipline, but, and this is so crucial to understand, that participation has given me back so, so much more than I have given it.