Combine positive with negative for better personal development results. Failure is an event, not a person. Every obstacle presents an opportunity. If you're looking for it. Hard work makes luck.
Nothing affects positive circumstance and results more than hard work.
A question my dad once asked me as I lamented my problems. If money makes your problems go away, attitude makes them go away as well. The tone of your verbiage determines the atmosphere of your environment. Resign your position as general manager of the universe. All of a sudden all the other quotes and advice made sense.