10 000 hours of focused deliberate practice. (at least this is more evidence based http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.169...) rather than all these BS pseudo scientific blabla (no evidence) "advice" blog posts using mathematic formula.

The advice may or may not be good, but those pseudo-formula always make me cringe. (At least they used multiplication and not addition, that way they can wiggle out of questions of units/dimensions much easier.)

>The luck variable represents everything outside of your control.

If we understand luck as being in the right place at the right time, the right attitude can transform the wrong place (a frustrating obstacle) into the right place (a challenge worth taking on).

Here's another quote I really like:

"If you think you can do it, or you think you can't do it, either way you are right."

If you marry, you will regret it; if you do not marry, you will also regret it; if you marry or if you do not marry, you will regret both; whether you marry or you do not marry, you will regret both. Laugh at the world's follies, you will regret it; weep over them, you will also regret it; if you laugh at the world's follies or if you weep over them, you will regret both; whether you laugh at the world's follies or you weep over them, you will regret both. Believe a girl, you will regret it; if you do not believe her, you will also regret it; if you believe a girl or you do not believe her, you will regret both; whether you believe a girl or you do not believe her, you will regret both. If you hang yourself, you will regret it; if you do not hang yourself, you will regret it; if you hang yourself or you do not hang yourself, you will regret both; whether you hang yourself or you do not hang yourself, you will regret both. This, gentlemen, is the sum of all practical wisdom.

            --Søren Kierkegaard, Either/Or

Success doesn't -require- luck. It can help, but it's not required.

Here's the formula for success: Take care of the customer. Charge them for it. Repeat.

Don't forget to rinse,

These "formulas" don't amount to much, but clever hindsight.I like the burst of inspiration from reading something like this, but it's a generalization.