Accordingly, when in the process of time the senses act through many interactions of sense with sensible things, the reasoning is awakened mixed with these very sensible things and is borne along in the senses to the sensible things as in a ship. But the functioning reason begins to divide and separately consider what in sense were confused. ...But the reasoning does not know this to be actually universal except after it has made this abstraction from many singulars, and has reached one and the same universal by its judgement taken from many singulars. 
Commentarius in Posteriorum Analyticorum Libros (c. 1217-1220)
                                    
        “Purity
Is obscurity.”
    
    
    
    
        
        
        
            
            
        
        
        
        
        
        
            "Reflection On A Wicked World" 
Many Long Years Ago (1945)
        
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Ogden Nash 125
American poet 1902–1971Related quotes
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 545.
The mutual love between Allah and His servants http://english.bayynat.org.lb/Doctrines/Themutual1.htm
                                        
                                        Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 545. 
Source: The Imitation of Christ 
Context: Simplicity and purity are the two wings by which a man is lifted above all earthly things. Simplicity is in the intention — purity in the affection. Simplicity tends to God,— purity apprehends and tastes Him.
                                    
In Mary for Earth and Heaven: Essays on Mary and Ecumenism http://books.google.com/books?id=Dx4WrfzZMsoC&pg=PA116&dq=%22it+was+fitting+that+the+virgin+should+be+radiant+with+a+purity+so+great%22&hl=en&ei=ELNATrLoCIXMsQLbsvmuCQ&sa=X&oi=book_result&ct=result&resnum=1&sqi=2&ved=0CCoQ6AEwAA#v=onepage&q=%22it%20was%20fitting%20that%20the%20virgin%20should%20be%20radiant%20with%20a%20purity%20so%20great%22&f=false, 2002, William McLaughlin, Jill Pinnock, eds., Gracewing, ISBN 0852445563 ISBN 9780852445563pp. 115-116.
“Purity of Heart Is to Will One Thing”
“The power of purity—it is a definite power.”
Pearls of Wisdom
“Purity is the feminine, Truth the masculine, of Honour.”
                                        
                                        Augustus William Hare and Julius Charles Hare Guesses at Truth (London: Macmillan, ([1827-48] 1867) p. 180. 
Misattributed
                                    
“Purity of heart will not make us poor.”
                                        
                                        Source: A Return to Love: Reflections on the Principles of "A Course in Miracles" (1992), Ch. 7 : Work, §9 : Sales to Service 
Context: Purity of heart will not make us poor. The exaltation of poverty as a spiritual virtue is of the ego, not the spirit. A person acting from a motivation of contribution and service rises to such a level of moral authority, that worldly success is a natural result.
Give all your gifts away in service to the world. If you want to paint, don’t wait for a grant. Paint a wall in your town that looks drab and uninviting. You never know who’s going to see that wall. Whatever it is you want to do, give it away in service to your community.