Quotation:

 John Adams quotes (American 2nd US President (1797-1801), 1735-1826)

 Mao Tse-Tung quotes (Chinese stateman, the key figure in China in the 20th century, 1893-1976)

 Aristotle quotes (Ancient Greek Philosopher, Scientist and Physician, 384 BC-322 BC)

 Eleanor Roosevelt quotes (American United Nations Diplomat, Humanitarian and First Lady (1933-45), wife of Franklin D. Roosevelt, 32nd US president. 1884-1962)

 Bertrand Russell quotes (English Logician and Philosopher 1872-1970)

 Mahatma Gandhi quotes (Indian Philosopher, internationally esteemed for his doctrine of nonviolent protest, 1869-1948)

 John Adams quotes (American 2nd US President (1797-1801), 1735-1826)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 S. Gudder quotes