A two-fer from Milton Friedman............

“A major source of objection to a free economy is precisely that it does this task so well.   It gives people what they want, instead of what a particular group thinks they ought to want. Underlying most arguments against the free market is a lack of belief in freedom itself.” 

“I do not believe that the solution to our problem is simply to elect the right people. The important thing is to establish a political climate of opinion which will make it politically profitable for the wrong people to do the right thing. Unless it is politically profitable for the wrong people to do the right thing, the right people will not do the right thing either, or it they try, they will shortly be out of office.” 

-Milton Friedman