We must strive to discover what we are particularly good at. We must also recall those types of activities that, in the words of a famous writer, are "the subject of thought that we engage in the greatest pleasure," and then write them in a list. Reviewing and analyzing these things that we feel the greatest pleasure in doing provides us with one of the keys that open the door to personal competence, because by reviewing this list and remembering the types of activities that we love the most, we can appreciate the value of our enthusiasm for anything we do.
Personal competence is based on two basic principles: good health and sound thinking, and these two principles are certainly the foundation of any success.