Two things fill the mind with ever new and increasing admiration and awe, the oftener and more steadily we reflect on them: the starry heavens above me and the moral law within me.

Laws always lose in energy what the government gains in extent.

It is therefore correct to say that the senses do not err — not because they always judge rightly, but because they do not judge at all.

So act that anything you do may become universal law.

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.

An organized product of nature is that in which all the parts are mutually ends and means.

The universal and lasting establishment of peace constitutes not merely a part, but the whole final purpose and end of the science of right as viewed within the limits of reason.