What is the meaning of "no pain, no gain"?

The meaning of "no pain, no gain" is:

without suffering, there is no reward


What is the definition of "no pain, no gain"?

The definition of "no pain, no gain" is:

without suffering, there is no reward



"no pain, no gain" means

without suffering, there is no reward

Example Sentences:

A: This exercise is so difficult!
B: Yeah but it’ll help you lose weight. As they say, no pain, no gain!

I really hate studying, but no pain, no gain. If I don’t study I’ll never get into a good university.