In history as in human life, regret does not bring back a lost moment and a thousand years will not recover something lost in a single hour. – Stefan Zweig
History balances the frustration of “how far we have to go” with the satisfaction of “how far we have come.” It teaches us tolerance for the human shortcomings and imperfections which are not uniquely of our generation, but of all time. – Lewis F. Powell, Jr.
With engineering, I view this years failure as next years opportunity to try it again. Failures are not something to be avoided. You want to have them happen as quickly as you can so you can make progress rapidly. – Gordon Moore