Explain the following lines from On Liberty by John Stuart Mill. "He who lets the world, or his own portion of it, choose his plan of life for...

This famous quote comes from John Stuart Mill's great work
On Liberty, so I have moved this question to the appropriate group.
In this quote, the author makes a comparison between two types of people. According to
this quote, the world is full of two groups of individuals. The first lets the world
choose their "plan of life" or destiny for them. They are thus described as passive
characters who don't need any other skills or abilities except the "ape-like one of
imitation." The author is saying that those who let the world decide their future need
only to know how to imitate.

However, the second group of
people are those who choose their destiny or plan for themselves. These people, in
contrast to the "ape-like" imitators, must use all of their gifts and abilities to be
successful. They need to be shrewd observers, they need to have wisdom to know how to
act and above all they must have self-control and firmness to stick to their decision to
be active and choose their own path in life.