What is the lesson im trying to say, keep your focus even though things get tough, keep moving even though its slow, because eventually those sacrifices will have a positive results, never get tired,
because once you quit, you will never get those dreams came true
Aside from focus, having passion on what we do will make us persevere. But I do not think that these things alone can make us successful in our venture. We still need to educate ourselves about our venture. Having a knowledge about what we are doing makes us to come up with a right decision whenever things gets rough. Working hard is a good thing but I believe it can be outweigh by working smartly and if we work smartly and give extra effort, it will have a synergic effect that can multiply the productivity of our effort.
So while we are putting extra effort in our endeavors, let us not forget to be smart in order to have a better result.