Robert Kenndy in South Africa, 1966
At a time when support of the black community in South Africa wasn't very popular, Bobby Kennedy spoke out (Isaacson, 292):
Each time a man stands up for an ideal, or acts to improve the lot of others, or strikes out against injustice, he sends forth a tiny ripple of hope, and crossing each other from a million different centers of energy and daring, these ripples build a current that can sweep down the mightiest walls of oppression and resistance..."
Reference
Isaacson, Walter. Editor. Profiles in Leadership. Historians on the Elusive Quality of Greatness. W. W. Norton & Company. 2010.