"I can work best now while peeling potatoes. . . . It is for me what lens-grinding was for Spinoza."--L. Wittgenstein

More than 250 years separate the publication of Baruch Spinoza's Ethics and Ludwig Wittgenstein's Tractatus Logico-Philosophicus. Both are considered monumental philosophical treatises, produced during markedly different times in human history, and notoriously challenging to interpret. In Peeling Potatoes or Grinding Lenses, Aristides Baltas contends that these works bear a striking similarity based on the idea of "radical immanence." Each purports...