The only person over whom you have direct and immediate control is yourself. The most important assets to develop, preserve and enhance, therefore, are your own capabilities. And no one can do it for you. You must cultivate the habit of leadership effectiveness for yourself - and doing so will be the single best investment you will ever make.
Stephen CoveyIf I really want to improve my situation, I can work on the one thing over which I have control-myself. I can stop trying to shape up my wife and can work on my own weaknesses. I can focus an being a great marriage partner, a source of unconditional love and support. Hopefully, my wife will feel the power of proactive example and respond in kind. But, whether she does or doesn't, the most positive way I can influence my situation is to work on myself, on my being.
Stephen Covey