Santayana, George,  1863-1952 <br/><br/>
The life of reason :  Or, The phases of human progress / 
By George Santayana. 
 - New York :  C. Scribner's Sons,  1926-. 
 - v. ;  19 cm. 
<br/><br/> [Vol.2 ](1929, viii, 205 p.) :  [Vol. 3](1926, ix, 279 p.) :  [Vol.5[(1928, ix, 320 p.) : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy