Believing that failure leads to success, he continued to challenge himself over and over again.

He lost everything.

He tried to solve the problem again and again.

How many times have you been to Japan?

Believing that failure is a stepping stone to success, he challenged again.

He decided to continue the job.

I watched that movie three times.

I believe that he will succeed.

I decided to take on a new project.

I decided to challenge a new project.