I shall take all the troubles of the past, all the disappointments, all the headaches, and I shall pack them in a bag and throw them in the East River.
It's History that's caused all the troubles in the past.
How sweet to remember the trouble that is past.
Never worry about anything that is past. Charge it up to experience and forget the trouble. There are always plenty of troubles ahead, so don't turn and look back on any behind you.
The memory of past troubles is pleasant. [Lat., Jucunda memoria est praeteritorum malorum.]
It is folly to shiver over last year's snow.
Sweet is the memory of past troubles.
Were a man's sorrows and disquietudes summed up at the end of his life, it would generally be found that he had suffered more from the apprehension of such evils as never happened to him than from those evils which had really befallen him.
It is pleasant to recall past troubles.