I have a lot of quotes hanging around in my computer, and it's hard to play favourites... buuuuut after some deliberation, here's a couple!

You just couldn't get hold of the things you have done and turn them right again. Such power might be given to the gods, but it was not given to men and women, and that was probably a good thing. Had it been otherwise, people would probably die of old age still trying to rewrite their teens. If you knew the past was out of reach, maybe you could forgive.
- Stephen King, [i]The Stand[/i]

It is difficult to get a man to understand something when his salary depends upon his not understanding it.
- Upton Sinclair