Here and elsewhere we shall not obtain the best insight into things until we actually see them growing from the beginning.

Art not only imitates nature, but also completes its deficiencies.

Since we think we understand when we know the explanation, and there are four types of explanation (one, what it is to be a thing; one, that if certain things hold it is necessary that this does; another, what initiated the change; and fourth, the aim), all these are proved through the middle term.

We have next to consider the formal definition of virtue.

Nor need it cause surprise that things disagreeable to the good man should seem pleasant to some men; for mankind is liable to many corruptions and diseases, and the things in question are not really pleasant, but only pleasant to these particular persons, who are in a condition to think them so.

Intuition is the source of scientific knowledge.

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