A Dictionary of philosophical quotations / 
edited by A. J. Ayer and Jane O' Grady 
 - Oxford :  Blackwell Reference,  1992 
 - xvi, 528 p. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0631170154 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy--Quotations, maxims, etc