You may think that you are well, but you will not secure health until you think thoughts that produce health. You may persistently affirm that you are well, but so long as you live in discord, confusion, worry, fear and other wrong states of mind, you will be sick; that is, you will be as you think and not what you think you are. You may state health in your thought, but if you give worry, fear and discord to that thought, your thinking will produce discord. It is not what we state in our thoughts, but what we give to our thoughts that determine results.
Christian D. Larson (2012). “The Optimist Creed”, p.294, Penguin