One of the most important reasons for studying history is that virtually every stupid idea that is in vogue today has been tried before and proved disastrous before, time and again.
A learning experience is one of those things that says, 'You know that thing you just did? Don't do that.
Preservationists are the only people in the world who are invariably confirmed in their wisdom after the fact.
Hindsight is, of course, 20/20. Any time you go back, and you look at something, and now you've got the result of something, you say, 'Yeah, maybe it wasn't the right idea.'
Parents sometimes make not those allowances for youth, which, when young, they wished to be made for themselves.
Everything has its place and time. We men of the nineteen-forties can smile at the mistakes of the nineteen-thirties, and, in turn, the men of the nineteen-fifties will laugh at the mistakes of the nineteen-forties. It is this historical perspective that shall save us.
Hindsight is always 20/20, but I imagine a lot of married and divorced people have insights to share about how they felt during their engagement.