By acting as you wish ...

By acting as you wish yourself to be, in due course you will become as you act.
By acting as you wish yourself to be, in due course you will become as you act.

More phrases

Effort only fully releases its reward after a person refuses to quit.
Never complain and never explain.
A good plan violently executed now is better than a perfect plan executed next week.
 George S. Patton
Problems are not stop signs, they are guidelines.
 Robert Schuller
Never give up, for that is just the place and time that the tide will turn.
 Harriet Beecher Stowe

Quotes from the same author

Believe in yourself! Have faith in your abilities! Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
If you want things to be different, perhaps the answer is to become different yourself.
Change your thoughts and you change your world.
You don't have to be tired and bored. Get interested in something. Get absolutely enthralled in something. Throw yourself into it with abandon.
Believe in yourself! Have faith in your abilities. Without a humble but reasonable confidence in your own powers you cannot be successful or happy. But with self-confidence you can succeed. A sense of inferiority and inadequacy interferes with the attainment of your hopes, but self-confidence leads to self-realization and successful achievement.