"The Stoics made three divisions of philosophy, Physic, Ethic, and Logic. ...It appears, however, that this division was made before Zeno's time and acknowledged by Plato. ...Logic is not synonymous with our term Logic in the narrower sense of that word."

“I could have made the language more easy and flowing, but I have preferred a ruder style as being better suited to express the character of the original.”

“This power of attention is that which perhaps more than any thing else distinguishes those who do great things from those who can do nothing well.”

“The emperor Antoninus was a practical moralist. From his youth he followed a laborious discipline, and though his high station placed him above all want or the fear of it, he lived as frugally and temperately as the poorest philosopher.”

“The preparation for these examinations is a forcing system, a straining of the memory, a loading of the head with more than it can hold, and much more than it can understand, followed, as in bodily excesses, by disorder of function, addling of the brain, and the stoppage of healthy mental growth. The weak, who work hard to obtain their object, are damaged; the strong may suffer little or nothing, but they do not gain much. Those do best who do not trouble themselves about the matter, but do as well as they can and care not about success or failure.”

“I have heard it maintained that it is always the teacher's fault if a boy does not learn, even a stupid and idle boy; but I leave the decision of this matter to the "communis sensus," the common intelligence of mankind.”

“He constantly recurs to his fundamental principle that the universe is wisely ordered, that every man is a part of it and must conform to that order which he cannot change, that whatever the Deity has done is good, that all mankind are a man's brethren, that he must love and cherish them and try to make them better, even those who would do him harm.”