The quest for meaning is the key to mental health and human flourishing

. . . nothing could touch the strength of my love, and the thoughts of my beloved. Had I known then that my wife was dead, I think that I still would have given myself, undisturbed by that knowledge, to the contemplation of that image, and that my mental conversation with her would have been just as vivid and just as satisfying. "Set me like a seal upon thy heart, love is as strong as death."

The more one forgives himself - by giving himself to a cause to serve or another person to love - the more human he is and the more he actualizes himself.

[Speaking of his experience in a concentration camp:] As we said before, any attempt to restore a man's inner strength in the camp had first to succeed in showing him some future goal...Woe to him who saw no more sense in his life, no aim, no purpose, and therefore no point in carrying on. He was soon lost.

The incurable sufferer is given very little opportunity to be proud of his suffering and to consider it ennobling rather than degrading" so that "he is not only unhappy, but also ashamed of being unhappy.

Man ultimately decides for himself! And in the end, education must be education towards the ability to decide

Man’s main concern is not to gain pleasure or to avoid pain but rather to see a meaning in his life.