it impoverishes itself

 

As long as Orthodoxy maintains stubbornly: “No, we shall concern ourselves only with the study of Talmud and the legal codes, but not with aggadah, not ethics, not Kabbalah, not scientific research, not the knowledge of the world, and not Chassidism,” it impoverishes itself. And against this I shall continue to wage battle.

– Rav Avraham Yitzchak Kook