“The ancient teachers of the Buddhist doctrine were well aware that courage is an essential feature of true faith. They therefore compared faith to a strong and courageous hero who plunges ahead into the turbulent waters of a stream to lead safely across the weaker people who timidly stop at the shore, or, excitedly and in vain, run up and down the bank engaged in useless arguments about the proper place to cross.”

There Is A Way Out

1964 Memorial Edition, p. 264 http://www.jfklibrary.org/Research/Research-Aids/Ready-Reference/JFK-Quotations/Profiles-in-Courage-quotations.aspx
Pre-1960, Profiles in Courage (1956)

Farewell speech to the Liberal Party http://www.primeministers.ca/trudeau/bio_9.php?context=b (14 June 1984)

Variant: Those who have courage and faith shall never perish in misery
Source: The Diary of a Young Girl

The Case for God, first broadcast on BBC1, 6 September 2010

As quoted in 1927 (2000) by Robert P. Fitton

Address to the Democratic National Convention, Chicago, Illinois. (21 July 1952); published in Speeches of Adlai Stevenson (1952) p. 17
Context: What counts now is not just what we are against, but what we are for. Who leads us is less important than what leads us — what convictions, what courage, what faith — win or lose. A man doesn't save a century, or a civilization, but a militant party wedded to a principle can.

Source: Doing Virtuous Business (Thomas Nelson, 2011), p. 67.