Kant's original sentence "The starry sky above my head" is "This is the starry sky above my head and the moral law in my heart." This sentence comes from the last chapter of Kant's "Critique of Practical Reason", in which Kant first established the eternal existence of spirit and the existence of God.

This sentence comes from the last chapter of Kant's "Critique of Practical Reason". In this book, Kant first determined the eternal existence of spirit and the existence of God. The book discusses the issue of the highest good in life. Kant believes that when people absolutely obey moral laws, they should not just look for happiness, but should look for the happiness given to people by God.

The important theoretical significance of this book is that it highlights the issue of human subjectivity, emphasizes the dignity and sublimity of personality, and expresses a strong humanistic spirit.

The original sentence is, there is only the starry sky above my head and the moral law in my heart. The more I think about it, the more I am in awe. The whole thing is about rationality, the principle of thinking existence, and rational thinking about everything from a human perspective. It is especially critical of human rational existence.

Every time I open Kant's works, I feel like I am wandering in the sea of ??stars. Although it is vast and difficult to understand, I can clearly feel the freedom in it, the freedom to do anything that is truly not limited by time and space.