Two word phrases...
I recently heard a two word phrase intended to remind pilots how tailwheel aircraft are best flown: "Aggressive Finesse".
That brought to mind the additional phrases: "Mechanical sympathy" (reminding us to treat aircraft gently whenever we can, and "Configuration assurance" (reminding us to think about and assure the configuration of the aircraft for the nest thing we're going to do with it).
Are there any other short phrases reminding us how to be better pilots?