People
He who is not courageous enough to take risks will accomplish nothing in life.
— Muhammad Ali

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The saying makes courage a condition of achievement, linking progress with a willingness to take risks. Its absolute language leaves little room for cautious success. Read as encouragement, it pushes the listener to see uncertainty as part of accomplishing something, rather than a reason to avoid trying.
Context reviewed