"Give thanks for sorrow that teaches you pity; for pain that teaches you courage - and give exceeding thanks for the mystery which remains a mystery still - the veil that hides you from the infinite, which makes it possible for you to believe in what you cannot see."
-----Robert Nathan
I know this from a bloody movie, not suitable for people under18. But the last words of the movie is very instructive. Life is hard, full of danger. I have a bitter life, but never lost hope.