Knowledge of the world in only to be acquired in the world, and not in a closet.

Some things can be studied and some can only be walked into. How a room turns, why a deal fell apart, what a person means by the pause before they answer: none of it survives the trip onto a page intact. Reading gives you the map and the vocabulary, which is not nothing, and then the terrain does the rest. Preparation can quietly become a way of postponing contact.

Take whatever you have been researching and put yourself in one real situation involving it this week. Expect to be clumsy, and pay attention to whatever surprised you. That surprise is the part you could never have read.