If you saw some guy robbed a purse from a lady, will you ran over there and knocked this guy down? Or just notice that lady just before you saw the guy was about to robbed her?

If you saw some guy robbed a purse from a lady, will you ran over there and knocked this guy down? Or just notice that lady just before you saw the guy was about to robbed her? As we all know the consequences is that you might get revenge from that robber. Will you still have the brave to stand out for justice? Some people think that it is too risky to be a hero, while others think that we must continue to uphold justice. In my point of view, I agree with the latter.
如果你看到有个男的在抢个女士的包包，你会跑过去把男子击倒吗？或者只是在他准备抢之前偷偷提醒一下那位女士？我们都知道这样有可能会被那个抢劫犯报复。你还有勇气为正义站出来吗？有些人认为当英雄风险太高，然而其他人认为我们必须伸张正义。在我看来，我同意后者。
In the first place, adhere to principles and uphold justice is Chinese traditional virtues; we should carry forward Chinese traditional virtues. Although Good Samaritans always get revenge from the thief when they are helping the victims or after, such as they might be stabbed by them, it is all on the news. However, if we can, we could help others in some way that can minimize the damage. For instance, we can whispered to the victim when you find out that he or she is going to be stolen by thief. This is a win-win way to uphold justice, you don’t get hurt, and the others don’t get stolen.
第一，秉公守法伸张正义是中华传统美德，我们应该继续发扬这种传统美德。尽管见义勇为者常常在帮助他人或者之后被小偷报复，例如他们很可能被小偷捅伤，这种事常常上新闻。然而，如果我们可以，我们能够用把伤害最小化的方法去帮助他人。例如，我们可以在发现某人要被小偷偷东西的时候偷偷告诉他们。这种是双赢的声张正义法，你不被伤，他们不被偷。
In the second place, change the position to the problem, if we are the victim, you were robbed in a bus, what would you feel about the whole passengers in the bus doing nothing but just standing right up the spot and watching you being robbed? Does it feels hurt? Just like the painful that injured by a knife. Help others, because you might be the one who need to help next.
第二，换位思考，如果我们是受害者，你在巴士里被抢劫，如果全车的人只是呆呆地站在看着你被抢，你什么感受？很伤吧？就像被刀子伤一样疼。帮助他人，因为你也许就是下一个需要帮助的人。
In conclusion, if we are seeing something like this, we should dare to help others. It would be worth to do that even we might get hurt, or it will let thieves more rampant if we do nothing.
总之，如果我们看到类似的事情，我们应该敢站出来帮助别人。就算是受伤了，那也是值得的，不然我们什么都不做，小偷只会更加猖狂。