In this age, the mere example of non-conformity, the mere refusal to bend the knee to custom, is itself a service. Precisely because the tyranny of opinion is such as to make eccentricity a reproach, it is desirable, in order to break through that tyranny, that people should be eccentric.

The despotism of custom is on the wane. We are not content to know that things are; we ask whether they ought to be.

Mechanizing man's work had changed but not lighted his toil.

Both teachers and learners go to sleep at their post as soon as there is no enemy in the field.

The duty of man is the same in respect to his own nature as in respect to the nature of all other things, namely not to follow it but to amend it.

To do as one would be done by, and to love one's neighbour as oneself, constitute the ideal perfection of utilitarian morality

It is a bitter thought, how different a thing the Christianity of the world might have been, if the Christian faith had been adopted as the religion of the empire under the auspices of Marcus Aurelius instead of those of Constantine.