Settle, for sure and universally, what conduct will promote the happiness of a rational being. - Immanuel Kant

I have therefore found it necessary to deny knowledge in order to make room for faith.

The outcome of an act commonly influences our judgment about its rightness, even though the former was uncertain, while the latter is certain.

An age cannot bind itself and ordain to put the succeeding one into such a condition that it cannot extend its (at best very occasional) knowledge , purify itself of errors, and progress in general enlightenment. That would be a crime against human nature, the proper destination of which lies precisely in this progress and the descendants would be fully justified in rejecting those decrees as having been made in an unwarranted and malicious manner.

The touchstone of everything that can be concluded as a law for a people lies in the question whether the people could have imposed such a law on itself.