Career Success: For success in your career do you focus more on development of your weaknesses or strengths? Why?

BOTH. A periodic SWOT analysis of one's own abilities is very important to improve on the weaknesses. As also to build on the strengths.

Learning is a continuous process and one must always have an open mind to gather more knowledge even in an area of strengths.

As the saying goes with the human brain 'USE IT OR LOOSE IT'

I am  working on my wearknesses...