In Memoriam Aḥad Ha’am:
Annual Aḥad Ha’am Memorial Lectures
L’Zikhro Shel Aḥad Ha’am: Meḥkarim baFilosofiya Shel haYahadut [In Memoriam Aḥad Ha’am: Annual Aḥad Ha’am Memorial Lectures]. Jerusalem: The Hebrew University Magnes Press, 1937. [Hebrew]
Individual lectures:
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‘HaFilosofiya v’Aḥad Ha’am’ [Philosophy and Aḥad Ha’am] (inaugural lecture, 1929).
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‘HaHidamut la’El v’Ra’ayon haKdusha’ [Imitatio Dei and the Idea of Holiness] (1931).
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‘HaSekhel v’haRatson k’Gormim Datiyim’ [Intellect and Will as Religious Factors] (1932).
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‘Al haTa’uyot...’ [De erroribus philosophorum] (1933).
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‘Ha’Elilut’ [Paganism] (1934).
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‘Muskalot Emtsa’iyim b’Musar haYahadut’ [Middle Axioms in Jewish Ethics] (1935).
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‘Ta’amei haMitsvot’ [The Reasons for the Precepts] (1936).
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‘Ha’Hitpat’ḥut, ha’Hagdara v’haYahadut’ [Development, Definition, and Judaism] (1937).