“One will seem to promote virtue better by using encouragement and persuasion of speech than law and necessity. For it is likely that he who is held back from wrongdoing by law will err in secret but that he who is urged to what he should by persuasion will do nothing wrong either in secret or openly. Therefore he who acts rightly from understanding and knowledge proves to be at the same time courageous and right-minded.”

“Men achieve cheerfulness by moderation in pleasure and by proportion in their life excess and deficiency are apt to fluctuate and cause great changes in the soul. And souls which change over great intervals are neither stable nor cheerful. So one should set one's mind on what is possible and be content with what one has taking little account of those who are admired and envied and not dwelling on them in thought but one should consider the lives of those who are in distress thinking of their grievous sufferings so that what one has and possesses will seem great and enviable and one will cease to suffer in one's soul through the desire for more.”

“Good means not merely not to do wrong, but rather not to desire to do wrong.”

“Everything existing in the universe is the fruit of chance and necessity.”

“He who knows nothing, loves nothing. He who can do nothing understands nothing. He who understands nothing is worthless. But he who understands alsoloves, notices, sees … The more knowledge is inherent in a thing, the greater the love.… Anyone who imagines that all fruits ripen at the same time as the strawberries knows nothing about grapes.”

“No power and no treasure can outweigh the extension of our knowledge.”

“When any person harms you, or speaks badly of you, remember that he acts or speaks from a supposition of its being his duty. Now, it is not possible that he should follow what appears right to you, but what appears so to himself. Therefore, if he judges from a wrong appearance, he is the person hurt, since he too is the person deceived. For if anyone should suppose a true proposition to be false, the proposition is not hurt, but he who is deceived about it. Setting out, then, from these principles, you will meekly bear a person who reviles you, for you will say upon every occasion, "It seemed so to him."....”