The Road Is Strewn With Many Dangers ...

" First is the danger of futility; the belief there is nothing one man or

  one woman can do against the enormous array of the world's ills --

  against misery, against ignorance, or injustice and violence.

  Yet many of the world's great movements, of thought and action,

  have flowed from the work of a single man.

  The second danger is that of expediency; of those who say that hopes

  and beliefs must bend before immediate necessities ...

  high aspiration and deep convictions are not incompatible with the most

  practical and efficient of programs...Of course to adhere to standards,

  to idealism, to vision in the face of immediate dangers takes great

  courage and takes self-confidence. But we also know that only

  those who dare to fail greatly can ever achieve greatly.

  A third danger is timidity. Few men are willing to brave the disapproval

  of their fellows, the censure of their colleagues, the wrath of their society.
  Moral courage is a rarer commodity than bravery in battle or great intelligence.
  Yet it is the one essential, vital quality for those who seek to change the world
  which yields most painfully to change.

  For the fortunate amongst us, the fourth danger is comfort;

  the temptation to follow the easy and familiar path of personal ambition

  and financial success so grandly spread before those

  who have the privilege of an education. "

Robert F. Kennedy
United States Senator and Attorney General
20 November 1925 - 6 June 1968
Excerpts from Annual Day of Affirmation Address on 6 June 1966

Robert F. Kennedy Memorial
http://www.rfkmemorial.org/lifevision/dayofaffirmation/ 
Online Speech Bank - Day of Affirmation Address
http://www.americanrhetoric.com/speeches/rfkcapetown.htm 
Wikipedia The Free Encyclopedia - Day of Affirmation Speech Entry
http://en.wikipedia.org/wiki/Day_of_Affirmation_speech