In Jack Canfield’s book: The Success Principles he proposes

Creating momentum is an important part of the success process. In fact, successful people know that if you are willing to pay the price in the beginning, you can reap the benefits for the rest of your life.

He adds:

Likewise, in any business or profession, once you have paid the price to establish yourself as an expert, a person of integrity who delivers high-quality results on time, you get to reap the benefits of that for the rest of your life.