Profit is not a cause but a result-
Leaders grow; they are not made.
Don't solve problems. Pursue opportunities.
They wrongly believe that good intentions move mountains. Bulldozers move mountains. But there are exceptions.
Don't take on things you don't believe in and that you yourself are not good at. Learn to say no. Effective leaders match the objective needs of their company with the subjective competencies. As a result, they get an enormous amount of things done fast.
The job of a professional manager is not to like people. It is not to change people. It is to put their strengths to work.