“Is it too much to expect from the schools that they train their students not only to interpret but to criticize; that is, to discriminate what is sound from error and falsehood, to suspend judgement if they are not convinced, or to judge with reason if they agree or disagree?”

“We hope you have not made the error of supposing that to criticize is always to disagree. (...) To agree is just as much of an exercise of critical judgment on your part as to disagree.”

“A good book deserves an active reading. The activity of reading does not stop with the work of understanding what a book says. It must be completed by the work of criticism, the work of judging. The undemanding reader fails to satisfy this requirement, probably even more than he fails to analyze and interpret. He not only makes no effort to understand; he also dismisses a book simply by putting it aside and forgetting it. Worse than faintly praising it, he damns it by giving it no critical consideration whatever.”

“To agree without understanding is inane. To disagree without understanding is impudent.”

“Find and interpreting the important words.”

“... The person who, at any stage of a conversation, disagrees, should at least hope to reach agreement in the end. He should be as much prepared to have his own mind changed as seek to change the mind of another ... No one who looks upon disagreement as an occasion for teaching another should forget that it is also an occasion for being taught.”

“If an author does not give reasons for his propositions, they can only be treated as expressions of personal opinion on his part.”