Je me suis souvent demandé pourquoi Karl Popper avait terminé la péroraison dramatique du premier volume de son ouvrage La société ouverte et ses ennemis par la phrase : "

Translate to English.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
I have often wondered why Karl Popper ended the dramatic peroration of the first volume of his Open Society and Its Enemies with the sentence: