The two papers published here for the first time were written by Leo Strauss
(1899–1973) in or around 1945, when he was teaching at the New School
for Social Research in New York City. One of Strauss's colleagues at
the New School was Kurt Riezler (1882–1955). Riezler had earned a PhD
in classics, but had an even more distinguished career as a practical
politician; he had been a high-ranking cabinet member in both Imperial and
Weimar Germany and a drafter of the Weimar constitution. He had wide-ranging
scholarly interests, having written books on the theoretical foundations of
politics, art, ancient philosophy, and the fundamental structure of social life.
Because they shared an interest in the foundations of social science, he and
Strauss co-taught a couple of courses in the mid-1940s (on
Aristotle's De anima and Descartes's
Passions of the Soul [along with Solomon Asch], and on
Plato's Theaetetus [along with Alexandre
Koyré]). Strauss indicated the enduring respect he had for Riezler in
a eulogy he wrote for him in 1955 and republished as the concluding essay in
What Is Political Philosophy? and Other Studies in
1959.