Self-knowledge (n.) is the second-best wisdom: if knowing everything is too much, at least do not be mistaken about yourself.
Self-knowledge (n.) looks impossible once you test it: there is no sight that sees no colour, only itself and other sights.
Self-knowledge (n.) comes by looking into another soul, at the part where wisdom happens, as an eye sees itself only in the seeing part of another eye.
Self-knowledge (n.) runs through the divine for Plato: to see yourself you must look at the source of thought, and that source is god.
Self-knowledge (n.) is, in Plato, the soul seeing itself in the mirror of the intelligible and recognizing itself there.
Self-knowledge (n.) comes first: until I know myself, it is ridiculous to investigate anything else — even whether the myths are true.
Self-knowledge (n.) fails in three ways: thinking yourself richer than you are, taller and handsomer than you are, or, commonest of all, better than you are.
Self-knowledge (n.) and friendship with oneself are enough company for the universe, which turns alone in its circle and needs nothing else — that is why it is a blessed god.
Self-knowledge (n.) belongs only to a man of sound mind, says the old proverb; while the fit is on him, the inspired man cannot judge his own visions.
Self-knowledge (n.) is knowing who your real rivals are: 'know thyself' tells Alcibiades that even the enemy's wives judge better than he what it would take to beat them.
Self-knowledge (n.) is the precondition of self-improvement: we can never know which skill makes us better until we know what we are.