Physiology and psychology cover, between them, the field of vital phenomena; they deal with the facts of life at large, and in particular with the facts of human life. ↗
Hear the words of prudence, give heed unto her counsels, and store them in thine heart; her maxims are universal, and all the virtues lean upon her; she is the guide and the mistress of human life. ↗
Just as treasures are uncovered from the earth, so virtue appears from good deeds, and wisdom appears from a pure and peaceful mind. To walk safely through the maze of human life, one needs the light of wisdom and the guidance of virtue. ↗
When I talk of the purpose of life, I am thinking not only of human life, but of all life on Earth and of the life which must exist upon other planets throughout the universe. ↗