After you acquire knowledge and skill, aim to be a practitioner. Time for practice on the job or in life will still test your authenticity. Knowledge is one of the greatest sources of confidence, and you will need that confidence to do your work and demonstrate you know what you have been trained for

After you acquire knowledge and skill, aim to be a practitioner. Time for practice on the job or in life will still test your authenticity. Knowledge is one of the greatest sources of confidence, and you will need that confidence to do your work and demonstrate you know what you have been trained for (Archibald Marwizi, Making Success Deliberate)