Behold, the fool saith, "Put not all thine eggs in the one basket" - which is but a matter of saying, "Scatter your money and your attention"; but the wise man saith, "Pull all your eggs in the one basket and - WATCH THAT BASKET." - Pudd'nhead Wilson's Calendar
There's an old saying in Tennessee — I know it's in Texas, probably in Tennessee — that says, fool me once, shame on — shame on you. Fool me — you can't get fooled again.
I have attended operas, whenever I could not help it, for fourteen years now; I am sure I know of no agony comparable to the listening to an unfamiliar opera.