Being sleep-derived not only hurts you at work, it hurts your health. You need to value yourself enough to have good sleep hygiene.

The lack of crispness comes significantly from a societal change in what's valued: a replacement of bold individual initiative with collaboration, consensus, teamwork etc. All that team-involved decision-making often leads to tepid solutions and a slow-moving organization.

I believe the personal essay is underrated for both writer and reader. It affords the writer great freedom: to speak personally yet invoke others' ideas, to be rational and/or emotional, to be confident or admit doubt.

Few people make a living as a public speaker but many people build it into their career. A career is like a suit of clothes: to look its best, it must be tailored and accessorized. So whatever career you choose, let's say it's social work - you can, for example, ask your boss - if you can give talks at housing project community centers about the social services available.

You might want to keep trying to rise, using a path that builds on your natural strengths: sales, analysis, managing people, whatever, and keep asking for honest feedback. When you reach the point at which it feels clear you've topped out, revise your job description or take a step back. Up is not the only way.

Entrepreneurship may be the most under-taught subject.

I believe that a core problem with undergraduate education, especially at research universities like Harvard, Stanford, NYU, etc, is that most teaching is done by PhDs, who by temperament, training, interests, and rewards are researchers first. So they spend most of their time and energy probing a snip of a field's cutting edge. In my view, the attributes needed to be a transformative undergraduate instructor are pretty orthogonal to that. It would seem that undergraduate education would be superior if there was a separate track for teaching faculty.