Titus and the Tripartite Soul: A Lesson on Leadership and Jewish Survival

With a novel reading of Josephus and Gittin, Shana Schwartz proposes that the tragedy of the second hurban and the mystery of subsequent Jewish survival may be understood by reference to the physiological knowledge available in classical antiquity.

Sharpening the Definition of Holeh Lefanenu: The Diamond Princess and the Limits of Quarantine

Sharon Galper Grossman and Shamai A. Grossman, leading doctors writing from quarantine, explain why even the Noda be-Yehuda, who requires that the sick person be before us, would agree that a public health crisis is subject to the leniencies of pikuah nefesh.

U-shemor Nafshekha: The Curious History of the (Supposed) Mitzvah to Maintain One’s Health

What does the Torah mean when it says to "guard your nefesh (soul)"? Lehrhaus editor David Fried reevaluates the common understanding of a Torah mandate for healthy living.

A Mathematical Reevaluation of the Prohibition on Counting Jews

  Mark Glass I. A long time ago in a galaxy far far away. … Growing up, that’s how the gabba’im of my youth minyan would determine if...

The Upside-Down Search for Hametz

Eli Genauer explores the profound impact of a printing error on the halakhot of Pesah.

Permission to Forbid: New Gezeirot in the History of Halakhah

Are today's rabbis allowed to initiate new prohibitions? Aryeh Klapper analyzes a responsum on the issue of halakhic innovation regarding new technologies.

On the Lomdus of the OU Responsum

Chaim Twerski contributes to the Lehrhaus Symposium on the recent OU statement regarding female clergy.

Judaism’s Hidden Road to Character

What do the wisdom of traditional Jewish texts and the recent findings of modern psychology have in common? Marc Eichenbaum finds commonalities in both to promote a character-driven approach to Jewish education.

How Will We Recognize Shabbat?

Gabriel Greenberg looks at a Talmudic passage on what to do when you don’t know which day is Shabbat and the insights it provides for our current situation.

Did the Prophet Amos Predict the Women’s Siyum Daf Yomi?

Yaakov Jaffe explains how Biblical grammar and parables come together in Amos to teach us about women's Talmud Torah.