It was the spirit of liberty which gave us our armed strength and which made our men invincible in battle. We know now that the spirit of liberty, the freedom of the individual, and the personal dignity of man are the strongest and toughest and most enduring forces in all the world .--Here's Harry! Candid Quips and Quotes from the Remarkable Mr. Truman (1976) (from a speech by President Harry S. Truman in September 1945 following the signing of the Japanese surrender).