I think that’s correct :)
Answer:
they become very courageous in what ever they do
Answer:
He shows that just being educated and knowing how things work does not mean that you truly and deeply understand and enjoy nature. Scientific explanations remove the magic that nature can have and explaining a star can never be as great as observing stars during a night. That is what Whitman is trying to say.
Explanation:
I want to say the 3rd option, but I'm not 100% sure, good luck!!