The world of caves of steel and our world are pretty different in many ways. However, difference does not keep us apart; friendships may form and could be tighter than any other of the same kind.

“Daneel, will you stay on Earth after the Spacers go?”

R. Daneel said, “I have not been informed. Why do you ask?”

Baley bit his lip, then said, “I didn’t think I would ever say anything like this to anyone like you,

Daneel, but I trust you. I even–admire you.”

Other forms of creature from the outer world may be more advanced in technology and life but, humans have their own advantages as well. Spaces are limited to population; only the good will live, as for humans, everyone has an equal chance and opportunity. Spaces may have high living standards due to the advanced technology yet, humans never gave up; they work hard and improve with years of knowledge, more than any robot can experiences. Although the differences can keep us apart but, there are no reasons for us not to be friends. Through Daneel and Baley, it was understood that different forms can become good friends despite the obstacles.