Why does emerson allude to individuals such as socrates, jesus, and galileo in "self-reliance"?

Emerson alludes to individuals like Socrates, Jesus, and Galileo in Self-Reliance to inspire readers through the examples of their struggles.

is basically a good source of getting and others by what you know for example if someone asked a question and you know the answer you could answer it and get some points or if you need on a question you could make a post about it and wait till someone answers it or just look up the question and see if someone else has asked about it