We can make mistakes about what we ought to do, and these are not the same as making bad decisions about what to do.

People who enjoy the privileges of success must use these privileges to benefit those who do not have them. These privileges constitute a deep hole they need to climb out of if they are to prevent its being the case that the world would have been better off if they had never been born.

Not only our moral life, but even our use of theoretical reason - on which we rely in rationally inquiring into nature - presupposes that we are free.

Kant does not regard freedom as an item of faith because it is too basic to our agency to be related to any end.

If being "iron headed" is to be lacking such feelings, then Kant's position is that an ironheaded person could not be a moral agent because such a person would not be rational.

It would be nice, wouldn't it? if we could get comfortable about the problem of freedom. Kant thinks that we can't.

I think the term "Kantian constructivism" as an oxymoron. Kant was a constructivist about mathematics, but not about ethics.