So act that anything you do may become universal law.

Among all nations, through the darkest polytheism glimmer some faint sparks of monotheism.

Two things fill the mind with ever new and increasing admiration and awe, the more often and steadily we reflect upon them: the starry heavens above me and the moral law within me. I do not seek or conjecture either of them as if they were veiled obscurities or extravagances beyond the horizon of my vision; I see them before me and connect them immediately with the consciousness of my existence.

Intuition and concepts constitute... the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge.

Freedom is the alone unoriginated birthright of man, and belongs to him by force of his humanity.

Beauty presents an indeterminate concept of Understanding, the sublime an indeterminate concept of Reason.

There is nothing higher than reason.