Guilt is also a way for us to express to others that we are a person of good conscience. 'I feel really guilty about getting drunk last night,' we say, when in actual fact we feel no guilt whatsoever or, at least, we could choose to feel no guilt. When people say to me, 'I drank too much last night,' I always reply, 'I drank exactly the right amount.

How to be Free (ed. 2006)