This isn't mine...

but it could be.

[from PostSecret]

---

It is only when we are very happy, that we can bear to gaze merrily upon the vast and limitless expanse of water, rolling on and on with such persistent, irritating monotony, to the accompaniment of our thoughts, whether grave or gay. When they are gay, the waves echo their gaiety; but when they are sad, then every breaker, as it rolls, seems to bring additional sadness, and to speak to us of hopelessness and of the pettiness of all our joys.
--Baroness Emmuska Orczy, The Scarlet Pimpernel

"Rough wind, that moanest loud
Grief too sad for song;
Wild wind, when sullen cloud
Knells all the night long;
Sad storm, whose tears are vain,
Bare woods, whose branches strain,
Deep caves and dreary main, -
Wail, for the world's wrong!"
--Percy Bysshe Shelley, Dirge

"For of all sad words of tongue or pen,
The saddest are these: 'It might have been!'"
--John Greenleaf Whittier, "Maud Muller"