"The more the pleasures of the body fade away, the greater to me is the pleasure and charm of conversation."

"The greatest penalty of evildoing; namely, to grow into the likeness of bad men."

"Of necessity, the most like are most full of envy, strife, and hatred of one another, and the most unlike of friendship. For the poor man is compelled to be the friend of the rich, and the weak requires the aid of the strong, and the sick man of the physician; everyone who knows not has to love and court him who knows."

"Any man may easily do harm, but not every man can do good to another."

"The thing to be done does not choose, I imagine, to tarry the leisure of the doer, but the doer must be at the beck of the thing to be done, and not treat it as a secondary affair."

"True friendship can exist only between equals."

"The whole life of the philosopher is a preparation for death."

"Astronomy compels the soul to look upwards and leads us from this world to another."

"By harming a horse, you decrease his excellence. Thus, by harming a person, you decrease their excellence."

"Any peace is better than any war."