Marcus Aurelius: “Accustom thyself as much as possible on the occasion of anything being done by any person to inquire with thyself, For…”

Depart then satisfied, for he also who releases thee is satisfied.

The safety of life is this, to examine everything all through, what it is itself, that is its material, what the formal part; with all thy soul to do justice and to say the truth.

There is one intelligent soul, though it seems to be divided.

Reflecting on all this, consider nothing to be great, except to act as thy nature leads thee, and to endure that which the common nature brings.