Past tears are present strength.

As in all sweetest music, a tinge of sadness was in every note. Nor do we know how much of the pleasures even of life we owe to the intermingled sorrows. Joy cannot unfold the deepest truths, although deepest truth must be deepest joy.

The sorrow which has no vent in tears may make other organs weep.

I love walking in the rain, 'cause then no-one knows I'm crying.

I am sick of the solace of sorrow, And fear what the prophets foretold; I am tired of the tears of tomorrow, And wish that things were as of old; I have felt of the force of the fetters, I have drunk of the draught that embitters, And all is not gold

The heart knoweth its own sorrow and there are times when, like David, it is comforting to think that our tears are put in a bottle and not one of them forgotten by the one who leads us in paths of sorrow.