Learn from the negative as well as the positive, from the failures as well as the successes.
You can change all things for the better when you change yourself for the better.
Unless you change how you are, you will always have what you've got.
Knowledge fueled by emotion equals action.
Personal development - the never ending chance to improve not only yourself, but also to attract opportunities and affect others.
If you want to amend your errors, you must begin by amending your philosophy.