You judge yourself by what ...

You judge yourself by what you think you can achieve, others judge you by what have achieved.
You judge yourself by what you think you can achieve, others judge you by what have achieved.

More phrases

Being self-made is a state of mind, and once you put that mentality to work, your success will come.
 Dave East
A lot of people change for good. Some people just fall off. Just trying to progress in anything, no matter what you're doing, I feel like any progression you make... some people aren't gonna be around you that were around you.
 Dave East
There are no secrets to success. It is the result of preparation, hard work, and learning from failure.
You have to have the service mentality in the sense that you subjugate your own ego, and you subjugate a large part of your own life to really helping other people, being successful on their behalf.
 Herb Kelleher
Success consists of going from failure to failure without loss of enthusiasm.

Quotes from the same author

The superior man understands what is right; the inferior man understands what will sell.
To be wronged is nothing unless you continue to remember it.
Wisdom, compassion, and courage are the three universally recognized moral qualities of men.
If you look into your own heart, and you find nothing wrong there, what is there to worry about? What is there to fear?
Study the past, if you would divine the future.