-- Passions work in four stages --
first, in the heart;
second, in the face;
thirdly, in words;
and fourthly, it is essential not to render evil for evil in deeds.
If you can purify your heart, passion will not come into your expression; but if it comes into your face, take care not to speak; but if you do speak, cut the conversation short in case you render evil for evil.
St. Poemen
