What does it mean by "One man with courage makes a majority."?

I own that I don't get it although I think I know all the meaning of each word in the quote.

This is my try.  " บุคคลหนึ่งคนที่มีความกล้าหาญย่อมสร้างคนส่วนใหญ่ "  

LoLLLl. I don't think my try would work, it sounds so weird.   Please, can anyone enlighten me and translate it into thai?