Hey Luke,

Thanks again for your work. You are by far the greatest online teacher I've ever come across (though I've never seen you teach face-to-face). you are concise, clear, direct, empathetic, extremely thorough, tactful and accessible. I am in awe of your abilities. You take the fruit that is at the top of the tree and gently place it into my straining arms! Sorry for the exuberant worship but I really want to express my gratitude for your efforts. They definitely aren't wasted on me.