Viktor Frankl, Man’s Search for Meaning.
The way in which a man accepts his fate and all the suffering it entails, the way in which he takes up his cross, gives him ample opportunity — even under the most difficult circumstances — to add a deeper meaning to his life. It may remain brave, dignified and unselfish. Or in the bitter fight for self preservation he may forget his human dignity and become no more than an animal. — P.67