10/15/1964
https://www.presidency.ucsb.edu...
"We will not let our might make the United States muscle-bound."
"But I also tell you that in the years to come my country will spare no effort to achieve a lasting peace for all of us."
"I think I will be guided by an old Chinese proverb: 'When you enter a country, inquire as to what is forbidden; when you cross a boundary, ask about the customs.'"
"Now, Therefore, I, Lyndon B. Johnson, President of the United States of America do hereby designate September 17, 1964 as von Steuben Day."