Thus then a single harmony orders the composition of the whole...by the mingling of the most contrary principles.

The goodness or badness, justice or injustice, of laws varies of necessity with the constitution of states. This, however, is clear, that the laws must be adapted to the constitutions. But if so, true forms of government will of necessity have just laws, and perverted forms of government will have unjust laws.

Injustice results as much from treating unequals equally as from treating equals unequally.

It is the active exercise of our faculties in conformity with virtue that causes happiness, and the opposite activities its opposite.

The principle aim of gymnastics is the education of all youth and not simply that minority of people highly favored by nature.

Friends are an aid to the young, to guard them from error; to the elderly, to attend to their wants and to supplement their failing power of action; to those in the prime of life, to assist them to noble deeds.

We are what we repeatedly do.