Quote from Dwight K. Schrute in The Job
Dwight K. Schrute: Listen up. Let's start from the ground up. Where does paper come from? Kevin: Trees. Dwight K. Schrute: Trees. And where do trees grow? Kevin: Forests. Dwight K. Schrute: Soil. Right. We have in front of you here seven different types of Pennsylvania topsoil. Now, what would you say is the most important element in the production of above-ground leafy growth? Probably phosphorus, right? Wrong. It's nitrogen. Absorb this information.