Lies immer mit einem Stift in der Hand

Wie man lesen soll.

Pencil can be erased, while a pen requires that you cross it out. This is how it should be. You do not erase a thought you had; you can only discard it. The fact of its existence remains after it is tossed away. So it is with ink. […] the pen [is] a physical reminder that you are not reading merely to consume the words of others passively, but that you have an obligation to respond.