hindsight quotes

Although we sought to do the right thingand believed we were doing the right thingin my judgement, hindsight proves us wrong.

- Robert Strange McNamara
  In Retrospect:  The tragedy and lessons of Vietnam (with Brian Van de Mark).

Traditional scientific method has always been at the very best, 20-20 hindsight. It's good for seeing where you've been.It'sgood for testing thetruth of what youthink you know, but it can't tell you where you ought to go.

- Robert M(aynard) Pirsig
  Zen and theArt of Motorcycle Maintenance, pt.3, ch.24.

Hindsight is always twenty-twenty.

- Billy (Samuel) Wilder
Attributed.