τί ἥδιστον, τὸ ἐπιτυγχάνειν → what's pleasant, to get the goal
subs.
Plague: P. and V. νόσος, ἡ, νόσημα, τό, λοιμός, ὁ. Met., bad habit: use P. τὸ κακόηθες (Plat.).