There is no point in regretting any part of the past. The past can't now be altered, the future has yet to be lived, and consciously to experience every moment of the present is the only way to gain at least the illusion of immortality.
P. D. JamesPerhaps it's only when people are dead that we can safely show how much we cared about them. We know that it's too late then for them to do anything about it.
P. D. Jamesto look back on one's life is to experience the capriciousness of memory. ... the past is not static. It can be relived only in memory, and memory is a device for forgetting as well as remembering. It, too, is not immutable. It rediscovers, reinvents, reorganizes. Like a passage of prose it can be revised and repunctuated. To that extent, every autobiography is a work of fiction and every work of fiction an autobiography.
P. D. James