参差多态乃是幸福之本源。
The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.
The study of complex systems has taught us that simple rules can give rise to incredibly complex behavior.