To think well, it is not enough that a man has ideas clear and distinct in his thoughts, nor that he observes the agreement or disagreement of some of them; but he must think in train, and observe the dependence of his thoughts and reasonings upon one another.
ongi pentsatzeko, gizakiak segidan pentsatu behar du eta bere pentsamenduak eta arrazoinamenduak elkarrekiko duten menpekotasunaz ohartu.