Generally speaking, selfishness is not a strange thing to us. It's human nature to be selfishness.
一般来说，自私对我们来说并不陌生。自私是人类的天性。
However, if everyone puts the selfishness in the first place, it would do great harm to our society.
但是，如果每个人都把自私放在第一位，它将给我们的社会带来巨大的伤害。
When comes to troubles, the first thing we consider is to protect ourselves.
当我们遇到麻烦的时候，我们想到的第一件事就是保护自己。

How about others who badly need help. In our society, we do not live alone, but with many other people.
其他极需帮助的人怎么办呢。在我们的社会，我们不是独自生存的，而是与很多人一起的。
Everyone might need support or help from others.
每个人都会需要别人的支持或帮助。
Selfishness may be the gap between people that will separate us from others.
自私有可能会成为人与人之间的代沟，把我们与别人独立开来。