History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. -Martin Luther King, Jr.
Never throughout history has a man who lived a life of ease left a name worth remembering. -Theodore Roosevelt
Only a good-for-nothing is not interested in his past -Sigmund Freud
A people without the knowledge of their past history, origin and culture is like a tree without roots. -Marcus Garvey
The people, and the people alone, are the motive force in the making of world history. -Mao Zedong