Don't stifle your career by limiting you knowledge.
Give away everything you have learned. If for no other reason, do it selfishly; in order to get more, you must give more.
When it comes to leading people, there is no problem that is unique to you.
Never lower your standards just to fill a position. You will pay for it later.
Bucket filling is in the eye of the bucket holder, not the bucket filler. Fill their buckets with things that are important to them ... not you.
When you depend on another's perceptions to match your expectations, you're setting yourself up for disappointment.