Well, freedom was a pretty important aspect of the enlightenment. It was in fact during this enlightenment era that American fought for and gain its independence. The declaration of Independence was very much influenced by Enlightenment philosopher, John Locke's ideas on human independence.
You can look up how John Locke influenced the US Declaration of Independence
Enforcement of rules limiting personal freedom
This person's ability to bring people together and gain respect will allow him to execute his philosophy. Being he believes that personal freedom should be limited this will create an environment of totalitarianism.
oh this is easy it was the Napoleonic invasions through Germany Russia Italy and Austria. aka the Napoleonic wars in the early 1800's
Veto
This is done by a president when he or she does not agree with a given law, this can be reversed by congress
The primary source of uncertainty over the limits on presidential power is that the Constitution grants the President the right to issue executive orders, which can override both Congress and the Judiciary.