.... I woke thinking of an event in my life that still brings regret. I can go months or longer in happy, effortless forgetfulness – then, like mushrooms after spring rain, it emerges ripe and complete.... I’ve learned a lesson articulated by Dr. Johnson in The Idler #72:
Regret is indeed useful and virtuous, and not only allowable but necessary, when it tends to the amendment of life, or to admonition of error which we may be again in danger of committing. But a very small part of the moments spent in meditation on the past, produce any reasonable caution or salutary sorrow.