Responsible work is an embodiment of love, and love is the only discipline that will serve in shaping the personality, the only discipline that makes the mind whole and constant for a lifetime of effort.  There hovers about a true vocation that paradox of all significant self-knowledge -- our capacity to find ourselves by losing ourselves.  We lose ourselves in our love of the task before us and, in that moment, we learn an identity that lives both within and beyond us.