They said America is a government of law, not men. They said there are inherent dangers in Democracy. It can degenerate into a mobocracy and tyranny.
James Madison said "Democracies have ever been spectacles of turbulence and contention, have even been found incompatible with personal security or the rights of property and have in general been as short in their lives as they are violent in their deaths."
John Adams said "Democracy never lasts long. It soon wastes, exhausts, murders itself. There was never a democracy that did not commit suicide"
Per Chief Justice John Marshall "The difference between a balanced Republic and a Democracy is like the difference between order and chaos"
Per Lord Acton, "The one prevailing evil of a democracy is the tyranny of the mob"
James Russell Lowell said "democracy gives every man the right to be his own oppressor"
Ralph Waldo Emerson said "democracy becomes a government of bullies tempered by editors"