"He who is not a good servant will not be a good master."

"You have been given the principles that you ought to endorse, and you have endorsed them. What kind of teacher, then, are you still waiting for in order to refer your self-improvement to him? You are …"

"If a man has a bad smell, he may be asked, 'To what does this belong?' To a man. 'Yes, but to a bad man.' To a bad man? 'Yes, for he is a beast.'"

"Fortify yourself with contentment, for this is an impregnable fortress."

"Every difficulty in life presents us with an opportunity to turn inward and to invoke our own resources. The trials we endure can and should introduce us to our strengths."