What are the classic sentences about the gap between people?

The gap between people is as follows:

1, there is a gap between people, depending on genes, culture, vision, thinking and hard work.

2. I have to admit that there is still a gap in people's ability! I will continue to work hard!

It is true that some people are really good people, and some scum are like dogs. There is still a gap between people.

4, there is a gap between people, not only materially, but also intellectually!

There must be a gap between people. Not everyone can live what you want to be, and I can't live what you want to be.