Source: 1962, Address and Question and Answer Period at the Economic Club of New York
Quotes about modification
page 2
John F. Kennedy
(1917–1963) 35th president of the United States of America
“History supplies us with examples of almost every possible modification of government.”
William Smith O'Brien
(1803–1864) Irish nationalist politician (1803-1864)
p. 16 https://books.google.com/books?id=4VUBAAAAYAAJ&pg=PA16
Principles of Government: Or Meditations in Exile (1856), Chapter II. On Centralized and Local Administration