Use the black pen, not the red pen

I was told by someone that a good boss is someone who uses the black pen, not the red pen. When you use the red pen, you are correcting someone else's ideas. When you use the black pen, you are coming up with your own ideas. Bosses with good ideas provide vision; bosses who correct ideas dampen motivation. It is something that I will keep in my mind as I try to be a good supervisor to the people working for me.