Whether it's something as seemingly insignificant as taking the biggest helping of cake and leaving none left for your sister, or a more impactful decision like devising a way to get the attention of your best friend's boyfriend, never hurt someone else to get ahead. Doing this often enough will backfire on you. Seek out the selfless choice, even when it's also the hardest. Resist the temptation to cheat, steal, or pull the wool over someone's eyes, even when you're sure you won't get caught. Are you the type who gets impatient when you have to wait in line at the post office or grocery store? When you start feeling your blood pressure rise, remember that every other person in the room has a life just as valuable as yours. Their time is as precious to them as yours is to you. Keeping this in mind will help you act selflessly when impatience threatens to get the better of you.  Don't take out your problems on other people. Having a lousy day doesn't give you the right to make someone else suffer for it. Constantly putting your own friends or family's desires above the needs of the greater community isn't truly selfless. How can you best meet the needs of as many people as possible, rather than just helping out those closest to you? Be a good example to those around you and go for the option that's best for everyone. If someone crossed you and seeks forgiveness, do your best not to hold a grudge. The selfless approach is to try to see the situation from the other person's point of view, and realize that it's almost always better to foster peace, love and forgiveness than spitefulness and hate. Forgiving someone who has wronged you can be incredibly difficult, but it's also exquisitely selfless.

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Write a summary of the previous text in Chinese:
不要因为一己私利伤害他人。 不要以为自己的时间要比别人的宝贵。 做惠及大多数人的事情。 宽恕、遗忘。