Hold sacred your capacity for understanding.

For in it is all, that our ruling principle

won't allow anything to enter

that is either inconsistent with nature

or with constitution of a logical creature.

It's what demands due diligence, care for others, and obedience to God.


—Marcus Aurelius, Meditations, 3.9(resource) Ryan Holiday, The Daily Stoic: 366 Meditations on Wisdom