Now, this endless progress is only possible on the supposition of an endless duration of the existence and personality of the same rational being (which is called the immortality of the soul).
Baina aurrerapen amaigabe hori zerizan arrazoidun horren amaigabeki irauten duen existentzia eta nortasuna aurresuposatuz baino ez da ahalgarri (horri arimaren hilezkortasuna deitzen zaio).