1, let nature take its course, do not insist, do not retain, do not insist. Come if you should, and get out if you should.

2. Many people don't need to meet again, because they are just passing by.

Nobody likes loneliness, just don't make friends reluctantly, because even that will only lead to disappointment.

4. Hold on to the future, forget the past and hurt the present.

5, there is no need to deliberately satisfy who, who is not eager to have, who is reluctant to retain. Let nature take its course, and leave yourself better for later generations.