The law of harvest is to reap more than you sow. Sow an act, and you reap a habit. Sow a habit and you reap a character. Sow a character and you reap a destiny.
You're either in it for the long haul or you're not.
Sweat equity is the best equity.
I have found in work that you only get back what you put into it, but it does come back gift-wrapped.
A personal belief is that if you're not personally invested in what you're working on, you'll fail.
You only get back what you are prepared to put in.
Tennis is one of those sports: whatever you put in, you get out.
I really emotionally invest in everything that I do.