There is a vast body of literature on how to do well, how to be happy, what to do and choose for one’s own benefit and that of others. This body covers a range from the vulgar to the great moral philosophers. We are not short of such analyses or guidance.
In contrast, the body of work which considers our failure to do well and be good is decidedly smaller, and also, it must be said, rather lamer, particularly in its power to explain why we fall into foolish beliefs, make bad decisions and commit hurtful acts. We remain opaque to others and to ourselves, thinking, acting and responding in ways which are harmful, counter-productive and baffling. Most baffling of all is our propensity to continue in these patterns, to compound error with error and throw good vigorously after bad. [Source]