“To fight an enemy properly, you have to know what they are. Ignorance is defeat.”

Yesterday and Today, 1917-1967: Contemporaries Report on the Progress of German Soviet Friendship - Page 105 - by Verlag Zeit im Bild - Soviet Union - 1967.

Go Rin No Sho (1645), The Fire Book

To Raoul Nordling <br class="br">Dallas, Gregor (2006). 1945: The War That Never Ended https://books.google.pl/books?id=PTEV0CPuhRcC&amp;pg=PA173&amp;hl=pl&amp;sa=X&amp;ved=0ahUKEwiUp-aI4dTfAhWKw4sKHYBJDg8Q6AEILDAA#v=onepage&amp;q&amp;f=false p. 178. Yale University Press. ISBN 9780300119886

Robert Spencer talking about identifying Islamic extremists, Michelle interviews Robert Spencer about Religion of Peace: Why Christianity is and Islam Isn’t, 2007-08-13 http://hotair.com/archives/2007/08/13/new-vent-michelle-interviews-robert-spencer-about-religion-of-peace-why-christianity-is-and-islam-isnt/,

As quoted in It's A Lot Like Dancing… : An Aikido Journey (1993 by Terry Dobson Riki Moss, and Jan E. Watson - 9781883319021}}

Remarks at a meeting with Serb leaders (16 March 1991), as quoted in Doder and Branson (1999) Milosevic: Portrait of a Tyrant

As quoted in Honor Your Gifts (2007) by Dona M. Deane, p. 199.
Variant: But there is suffering in life, and there are defeats. No one can avoid them. But it's better to lose some of the battles in the struggles for your dreams than to be defeated without ever knowing what you're fighting for

Source: The Notebook, The Proof, The Third Lie: Three Novels

Rich Dad Poor Dad: What the Rich Teach Their Kids About Money-That the Poor and the Middle Class Do Not!