Throughout America's adventure in free government, our basic purposes have been to keep the peace, to foster progress in human achievement, and to enhance liberty, dignity and integrity among peoples and among nations. To strive for less would be unworthy of a free and religious people. Any failure traceable to arrogance or our lack of comprehension or readiness to sacrifice would inflict upon us grievous hurt, both at home and abroad.

Farewell address (1961)