The acorn becomes an oak by means of automatic growth; no commitment is necessary. The kitten similarly becomes a cat on the basis of instinct. Nature and being are identical in creatures like them. But a man or woman becomes fully human only by his or her choices and his or her commitment to them. People attain worth and dignity by the multitude of decisions they make from day by day. These decisions require courage.
Indeed, compulsive and rigid moralism arises in given persons precisely as the result of a lack of sense of being. Rigid moralism is a compensatory mechanism by which the individual persuades himself to take over the external sanctions because he has no fundamental assurance that his own choices have any sanction of their own