He taught, and modern physiology and psychology confirm, that hate and jealousy and other evil passions destroy a man's physical vigor and efficiency. What a man continually thinks about determines his actions in times of opportunity and stress. A man's reaction to his appetites and impulses when they are roused gives the measure of that man's character. In these reactions are revealed the man's power to govern or his forced servility to yield.
Source: Conference Report, April 1967.
Contributed by: Zaady