People only change when they really want to change.
Yes, perhaps there are people who are always angry, or late, not to keep words, not as trustworthy as you, to speak more than you, less modest than you or even stupid than you ...
What should you do?
Nagging? Perhaps you will have to nag them throughout the year, throughout the month, even for life.
If you are too eager to help them, you should not preach, should only make a good example. If others feel like you are interesting, they will come to you to ask for your advice to change. If no one asks anything about you, please leisurely do your work, and let others experience your life.
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