Our Intellect Does Not Draw Its Laws

In The Metaphysical Elements Of Aesthetics The Various Nonmoral Feelings Are To Be Made Use Of; In The Elements Of Moral Metaphysics The Various Moral Feelings Of Men, According To The Differences In Sex, Age, Education, And Government, Of Races And Climates, Are To Be Employed.

Things Which We See Are Not By Themselves What We See ... It Remains Completely Unknown To Us What The Objects May Be By Themselves And Apart From The Receptivity Of Our Senses. We Know Nothing But Our Manner Of Perceiving Them.

Time Is Not An Empirical Concept. For Neither Co-existence Nor Succession Would Be Perceived By Us, If The Representation Of Time Did Not Exist As A Foundation A Priori.

Act So That The Maxim Of Your Act Could Be Made The Principle Of A Universal Law.

All Our Knowledge Begins With The Senses...