Your customers or clients or audience would get the best service from you and the best experience from you only when you are doing the best thing for yourself. Meaning you are first considering what is in your best interest and living it. Hence you would do the same thing if you are in the same position of your audience or your customers. So you are doing a great service to the people you serving by serving yourself the best way possible.
You must be your best self with commitment and consistency to have high high-esteem and self-respect for others to respect you and get value in your presence. You must ensure that others are winning along with you.
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