JOHN Stuart Mill's classic essay "On Liberty" gives reasons why some people should not be taking over other people's decisions about their own lives.
But Professor Cass Sunstein of Harvard has given reasons to the contrary. He cites research showing "that people make a lot of mistakes, and that those mistakes can prove extremely damaging."
Sunstein is undoubtedly correct that "people make a lot of mistakes." Most of us can look back over our own lives and see many mistakes, including some that were very damaging.
What Sunstein does not tell us is what sort of creatures, other than people, are going to override our mistaken decisions for us.
That is the key flaw in the theory and agenda of the left.
Implicit in the wide range of efforts on the left to get government to take over more of our decisions for us is the assumption that there is some superior class of people who are either wiser or nobler than the rest of us.
Yes, we all make mistakes. But governments make bigger and more catastrophic mistakes?
Think about the First World War, from which nations on both sides ended up worse off than before. Unprecedented carnage killed substantial fractions of whole young generations and left millions starving amid the rubble of war.
Think about the Holocaust, and about other government slaughters of even more millions of innocent men, women and children under communist governments in the Soviet Union and China.
Even in the United States, government policies in the 1930s led to crops being plowed under, thousands of little pigs being slaughtered and buried, and milk being poured down sewers at a time when many Americans were suffering from hunger and diseases caused by malnutrition.
The Great Depression of the 1930s, in which millions of people were plunged into poverty in even the most prosperous nations, was needlessly prolonged by government policies now recognized in retrospect as foolish and irresponsible.
One of the key differences between mistakes that we make in our own lives and mistakes made by governments is that bad consequences force us to correct our own mistakes.