I'd like to add to this. One thing Jack Dorsey said (paraphrasing here) in his interview with Kevin Rose (in Foundation series), is that he wishes he is fortunate to realise an opportunity when it presents itself.
To me that means 2 things: seeking out and creating opportunities. Build stuff, meet people, take risks and chances. This increases the chances of opportunities (luck) happening: Meeting that perfect co-founder, stumbling onto a brilliant idea, finding the right investors, etc.
Then secondly, you have to practice to be open-minded enough to realise that when an opportunity actually arrives, you know it is one! You might seek and create opportunities as much you want, as most of it ends up being luck, but if you don't realise that luck, you've missed the boat.
To me that means 2 things: seeking out and creating opportunities. Build stuff, meet people, take risks and chances. This increases the chances of opportunities (luck) happening: Meeting that perfect co-founder, stumbling onto a brilliant idea, finding the right investors, etc.
Then secondly, you have to practice to be open-minded enough to realise that when an opportunity actually arrives, you know it is one! You might seek and create opportunities as much you want, as most of it ends up being luck, but if you don't realise that luck, you've missed the boat.