This consideration comes to one from the moment one begins to realize the value of life. As man begins to consider this subject he spares himself unnecessary thought, speech, or action, and uses his own thought, speech, and action economically; and by valuing one's own life and action one learns to value the same in others. The time of human life on earth is most precious, and the more one practices economical use of this precious time and energy the more one knows how to make the best of life.