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"Without ambition one starts nothing. Without work one finishes 
nothing. The prize will not be sent to you. You have to win it. 
The man who knows how will always have a job. The man who also 
knows why will always be his boss. As to methods there may be 
a million and then some, but principles are few. The man who 
grasps principles can successfully select his own methods. The 
man who tries methods, ignoring principles, is sure to have 
trouble." 
-Ralph Waldo Emerson