The formation process of notes is the result of summing up, accumulating and recording bit by bit in my learning process. ..... This process is not easy, you need to study hard to gain something. ..... So, taking notes is your own learning achievement and a witness of your efforts. This learning achievement belongs entirely to oneself and has nothing to do with others. Therefore, I have the right to manage my notes as I wish.

I have the right to manage my notes according to my own wishes, and others have no right to ask.

Notes are the fruits of one's own study and accumulated by one's hard work. This learning achievement belongs entirely to oneself and has nothing to do with others. ..... Because of this, I have complete control over my study notes, and I can handle my study notes according to my own wishes, and others have no right to ask. ..... So you can keep your notes instead of lending them to others.

I have no obligation to show my notes to others. So it's not selfish.

From the perspective of rights and obligations, bills belong to themselves and they have the right to deal with them. At the same time, I have no obligation to show my notes to others. ..... Specifically, it is natural not to show your notes to others, not selfish. ..... On the contrary, those behaviors that want to read other people's notes are selfish behaviors that get nothing for nothing. ..... So, it is natural that you don't want to show others your notes, and there is no problem.