Read the passage below and answer the question. Woodrow Wilson... recognized that the Constitution is best understood not as a machine at all but as a living
thing. What he did not add was that it's a living thing with no body or mind, no moving parts or organs or spirit
separate from the bodies and minds and spirits of the people themselves, people whose constant vigilance-
and I noticed when I was coming into the building (National Archives] that statement "Eternal vigilance is the
price of liberty," appropriate to have on the archives - people whose constant vigilance is the lifeblood of
Constitutional survival.
Explain in about 50 words what the passage means.