It is not possible to refer a complex difficulty to a single cause.
Reality even when it is sad is better than illusions. Illusions are at the mercy of any winds that blow. Real happiness must come from within, from a fixed purpose and faith in one's fellow men.
Good friends walk in when the old ones walk out.
Faith is the strength by which a shattered world shall emerge into the light.
I believe in the immortality of the soul because I have within me immortal longings.
Truly I have looked in the very heart of darkness and refused to yield to its paralyzing influence, but in spirit I am one of those who walk the morning.