Philosophical Papers, 1896-99

This volume of the Collected Papers includes Russell's earliest philosophical writings, collected here for the first time. The 1896-1898 papers, few of which were published in Russell's lifetime, concentrate primarily on physics, arithmetic, and the concept of quantity. Several views that later became well-known in his "The Principles of Mathematics" actually originate in this earlier work and, though incomplete, "An Analysis of Mathematical Reasoning" forms the centrepiece of the volume. Writings from early in 1889, where he advances beyond his initial insights and develops a range of new ideas in the philosophy of logic, form the remainder of the volume. [via]