According to author and leadership consultant Simon Sinek, our brains don’t understand the concept of negativity. For example, giving a negative command to yourself, “Don’t think of elephants!” doesn’t mean you don’t think about elephants; instead, it emphasizes thinking about elephants. It means that “do this!” rather than a negative command of “don’t do it!” leads to a behavior-oriented change in humans. If you use negative expressions when asking or begging someone, you are likely to be rejected or fail. “Eat at the table!” is more likely to result in cleaning the house than “Don’t eat on the sofa!” - Joseph’s “just my thoughts”
The advice to concentrate on one thing instead of trying to excel at many is valid, as it’s also challenging to master a single skill. If you neglect the other essential background abilities necessary to enhance that one skill, you will be unable to overcome your limitations. For a top-level skill to thrive, the supporting average abilities for that skill must also develop concurrently. Concentration should not be an excuse to avoid or ignore what’s important. - Joseph’s “just my thoughts”