Definition & Meaning of "boldly go where no man has gone before"in English

What is the origin of the proverb "boldly go where no man has gone before" and when to use it?

The origin of the proverb "boldly go where no man has gone before" is famously associated with the opening sequence of the 'Star Trek' television series, which first aired in 1966. However, similar sentiments about exploration and pushing boundaries have been prevalent for much longer, with variants of the idea appearing as far back as the 16th century. This saying encourages individuals to challenge existing limits and venture into unfamiliar territories, whether in science, personal growth, or other pursuits, to achieve meaningful and groundbreaking accomplishments. It serves as a reminder that progress depends on the courage to challenge existing norms.