We may complain and cavil at the anarchy which is the amateurs natural element, but in soberness we must agree that if the amateur did not exist it would be necessary to invent him.

In teaching you cannot see the fruit of a day's work. It is invisible and remains so, maybe for twenty years.

The truth is, when all is said and done, one does not teach a subject, one teaches a student how to learn it.

To delve into history entails, besides the grievance of hard work, the danger that in the depths one may lose one’s scapegoats.

The danger that may really threaten (crime fiction) is that soon there will be more writers than readers

Science is, in the best and strictest sense, glorious entertainment

Finding oneself was a misnomer; a self is not found but made.