Answer:
Ralph Waldo Emerson's belief
Explanation:
Ralph Waldo Emerson led the transcendentalist movement in the middle of the 19th century and he was also a famous poet, lecturer, philosopher and more. He was writing and publishing his beliefs in his essays and he wrote and published more than 1,500 lectures that were popular in America.
One of his famous quotes is the quote from this question "Whoso is a man must be a nonconformist" and this quote can be found in his work ''Self-Reliance'' that was published in 1842 where he is describing what he thinks that people should develop in their lives and how self-reliance can be important to them.
