Any piece of knowledge which the pupil has himself acquired- any problem which he has himself solved, becomes, by virtue of the conquest, much more thoroughly his than it could else be. The preliminary activity of mind which his success implies, the concentration of thought necessary to it, and the excitement consequent on his triumph, conspire to register the facts in his memory in a way that no mere information heard from a teacher, or read in a schoolbook, can be registered.

No philosopher's stone of a constitution can produce golden conduct from leaden instincts.

The most important attribute of man as a moral being is the faculty of self-control.

The fact disclosed by a survey of the past that majorities have been wrong must not blind us to the complementary fact that majorities have usually not been entirely wrong.

It must be admitted that the conception of virtue cannot be separated from the conception of happiness-producing conduct.

So far from science being irreligious, as many think, it is the neglect of science that is irreligious-it is the refusal to study the surrounding creation that is irreligious.

Volumes might be written upon the impiety of the pious.