To devote its entire heart and mind

"To the making of these fateful decisions, the United States pledges before you--and therefore before the world--its determination to help solve the fearful atomic dilemma--to devote its entire heart and mind to find the way by which the miraculous inventiveness of man shall not be dedicated to his death, but consecrated to his life."

- Dwight D. Eisenhover

wikipedia reference on atoms for peace initiative