The Bed of Procrustes: Philosophical and Practical Aphorisms

by Nassim Nicholas Taleb

They agree that chess training only improves chess skills but disagree that classroom training (almost) only improves classroom skills.

To be a philosopher is to know through long walks, by reasoning, and reasoning only, a priori, what others can only potentially learn from their mistakes, crises, accidents, and bankruptcies—that is, a posteriori. –