I had this discussion with my father today and he finally conceded to me that I am partially right (he hates being wrong).
The fact that you were not born in a war torn country, the fact that you had good role models, the fact that you weren't born with a mental or physical handicap, the fact that you met your long term business partner at some random get together. Are all luck. Now that doesn't mean you should give up on all of your activities, because if you don't try at all you have a zero percent chance of success at that point. Even getting to the point where you have this work hard mindset is luck.