Plato's Biography of Socrates
A. E. Taylor
The Blackwell Dictionary of Western Philosophy
Nicholas Bunnin & Jiyuan Yu
Solving Problems in Mathematical Analysis, Part I
Tomasz Radożycki
Problem Books in Mathematics (1)
Diagnosing Contemporary Philosophy with the Matrix Movies
O. Bradley Bassler
The Cambridge Grammar of the English Language
Rodney Huddleston & Geoffrey K. Pullum
Tragic sense of life
Miguel de Unamuno