Quotation:

 John W. Gardner quotes (American Writer and Secretary of Health, Education and Welfare, 1912-2002)

 Whitney M. Young, Jr. quotes (American social reformer, 1921-1971)

 Alexander Graham Bell quotes (Scottish born American Inventor and Educator, best known for the invention of the telephone in 1876. 1847-1922)

 Orison Swett Marden quotes ( , )

 John W. Gardner quotes (American Writer and Secretary of Health, Education and Welfare, 1912-2002)

 Abraham Lincoln quotes (American 16th US President (1861-65), who brought about the emancipation of the slaves. 1809-1865)

 John Fitzgerald Kennedy quotes (American 35th US President (1961-63), 1917-1963)

 Seneca quotes (Roman philosopher, mid-1st century AD)

 William James quotes (American Philosopher and Psychologist, leader of the philosophical movement of Pragmatism, 1842-1910)