It's not whether the glass is half empty or half full, it's who is pouring the water. The key in business and success at any endeavor is doing your best to control your destiny. You can't always do it, but you have to take every opportunity you can to be as prepared as-and ahead of-the competition as you possibly can be.
Mark CubanI was a beast in college. I worked hard and I played hard. I was relentless learning about business. I actually snuck into MBA classes my freshman and sophomore years. I wanted to challenge myself to see how I compared to the smartest kids at Indiana University so I was 18 and pretended I was an MBA student.
Mark Cuban