High achievement always takes place in the framework of high expectation. (Charles Kettering, 20th century American inventor) 

When we are somewhat careless about our work, the result is almost always disappointing. If we set a high standard with an expectation of doing well, we most likely will. But consider also what businessman Louis Gerstner noted: “People don’t do what you expect but what you inspect.” Be diligent, work hard, plan to succeed, and check your work regularly.

Watch out that you do not lose what we have worked so hard to achieve. Be diligent so that you receive your full reward. (2 John 1:8)