To push forward with courage is to move forward without hesitation toward one's goals and objectives, even in difficult situations.
 

``Go forward'' with courage and move forward, and ``develop'' to push forward forever.
Four-letter idioms that combine two words with the same meaning are powerful and active. Because they have a strong will to achieve their goals, they can serve as a guide for companies and teams.

Yuuou Maishin = Yuuou Maishin

The four-letter idiom ``Yuou desujin'' is pronounced ``Yuou maishin''.
 

Learn Japanese words “four-character idioms”
Four-character idioms, which have been popular in Japan since ancient times, are words made up of four kanji, as the name suggests. Although it is said to have originated from Chinese, the four-character idiom, which is short but has a condensed meaning, is still used in various situations today as a means of concise expression. Here are some four-letter idioms that you may have heard but don't know what they mean, or you've seen them but don't know how to read them.