By the same token, every human being has the freedom to change at any instant. Therefore, we can predict his future only within the large framework of a statistical survey referring to a whole group; the individual personality, however, remains essentially unpredictable. The basis for any predictions would be represented by biological, psychological or sociological conditions. Yet one of the main features of human existence is the capacity to rise above such conditions, to grow beyond them. Man is capable of changing the world for the better if possible, and of changing himself for the better if necessary.
Viktor Frankl: Man’s search for meaning. Beacon Press, Boston, 1962 edition, page 131