Justice is a habit (habitus), whereby a man renders to each one his due with constant and perpetual will.

What distinguishes - in both senses of that word - contemplation is rather this: it is a knowing which is inspired by love. "Without love there would be no contemplation." Contemplation is a loving attainment of awareness. It is intuition of the beloved object.

The "supreme good" and its attainment -- that is happiness. And joy is: response to happiness.

All just order in the world is based on this, that man give man what is his due.

Contemplation does not ignore the 'historical Gethsemane', does not ignore the mystery of evil, guilt and its bloody atonement. The happiness of contemplation is a true happiness, indeed the supreme happiness; but it is founded upon sorrow.

Only those are called liberal or free which are concerned with knowledge; those which are concerned with utilitarian ends... are called servile...The question is... can man develop to the full as a functionary and a worker and nothing else; can a full human existence be contained within an exclusively workaday existence? Stated differently and translated back into our terms: is there such a thing as a liberal art?

[T]o know means to reach the reality of existing things[.]