To rectify past blunders is impossible, but we might profit by the experience of them.

You learn from a conglomeration of the incredible past - whatever experience gotten in any way whatsoever.

I try to learn from the past, but I plan for the future by focusing exclusively on the present. That's where the fun is.

You can't master your future if you're still a slave to your past.

There must be what Mr. Gladstone many years ago called a blessed act of oblivion. We must all turn our backs upon the horrors of the past. We must look to the future. We cannot afford to drag forward across the years that are to come the hatreds and revenges which have sprung from the injuries of the past.

The future is unknowable, but the past should give us hope.