Take for instance, two persons. One person has everything in life to make him happy, and he is without an ideal before him. The other person has nothing in his life to make him happy, but there is an ideal before him. It is this person who is living, and the other person is dead with all he has. That shows that there is a side in man's being -- call it spirit -- which remains unsatisfied with all that one has attained in one's lifetime. The satisfaction of the spirit, which is the deepest being of man, lies only in the pursuit of the ideal.