Piano Teaching In Four Sentences

I'm sure I posted this before, but I can't find where.

This is a combination of Déjà vu and amnesia, I suppose, because I'm sure I remember forgetting it before:

Jules Massenet said that piano teaching involves knowing four sentences:

1. Bonjour, Mademoiselle

2. Not so fast/slow

3. Less pedal, please

4. Give my regards to your mother

Simple, eh!