Title: The Symbolism of Blue and White
Author: Rabbi Joseph B. Soloveitchik

In this classic dvar torah, Rav Soloveitchik examines the symbolism of tekhelet and white in the tzitzit. This article comes from Rabbi Abraham R. Besdin’s book, Man of Faith in the Modern World; Reflections of the Rav Volume Two. The original audio of Rav Soloveitchik delivering the talk is available here.