It seems to me self-evident that it is worthwhile to understand the best thoughts of the past, to appropriate them, to criticize them.

Kant does not think that the silly commandment "universalize your maxims" is the be-all and end-all of ethics or that it provides us with some sort of general decision procedure that is supposed to tell us what to do under all circumstances.

Fichte is concerned with freedom as non-domination.

Those who employ their modest talents as best they can do make a contribution to a better human future.

One rational standard of action is how well it promotes the end it seeks. Another standard is whether it aims at ends which are good. Both of these, but especially the former, depend on judgments of fact.

Kant takes a free will to be a being or substance with the power to cause a state of the world (or a whole series of such states) spontaneously or from itself.

Kant can provide, and has provided, a good model for philosophers to think about the relation of metaphysics to science and scientific methodology.