A long time ago, I longed for freedom and thought that freedom meant speaking freely. Later, it was discovered in the face of freedom that only self-disciplined people can be free. Loneliness is precious. In this undisturbed time and space, it is a great freedom to arrange how to spend this time completely according to your own wishes.
However, talented people will enjoy and make use of loneliness. Only by accumulating energy when you are lonely can you bloom when you are not lonely.
Kant believes that the average person's understanding of freedom is actually very chaotic, reckless and self-righteous. Kant put freedom, God and immortality in the range of peace and wonder, not the freedom of the phenomenal world, but the freedom of the ontological world, which is beyond the scope of pure reason.
Because freedom itself must preserve the essence of its own freedom, and its essence cannot be confused with other things that are not free, which is called the restriction of freedom. When the train runs on the track, it can give full play to its machine function and speed up freely.
But it can't have the freedom to cross the track. The freedom of crossing the track is the freedom of violating freedom, endangering freedom and ending freedom. That's not freedom, it's suicide, because no one killed him. But after he committed suicide, his freedom will also end with his suicide, because he has no freedom not to commit suicide. This is called restricting freedom.