Joseph Hansen said this quote

In twenty years you could say and do a lot you wish you hadn't. In twenty years you could store up a lot of regrets. And then, when it was too late, when there was no one left to say I'm sorry to, I didn't mean it to, you could stop sleeping for regret, stop eating, talking, working, for regret. You could stop wanting to live. You could want to die for regret.It was only remembering the good times that kept you from taking the knife from the kitchen drawer and, holding it so, tightly in your fist, on the bed, naked to no purpose except that that was how you came into the world and how your best moments in the world had been spent--holding it so, roll onto the blade, slowly so that it slid like love between your ribs and into that stupidly pumping muscle in your chest that kept you regretting.