Dreams make you click, juice you, turn you on, excite the living daylights out of you. You cannot wait to get out of bed to continue pursuing your dream. The kind of dream I'm talking about gives meaning to your life. it is the ultimate motivator.

Be rigorous about your HR decisions. There is a difference between rigorous and ruthless.

In the end, it is impossible to have a great life unless it is a meaningful life. And it is very difficult to have a meaningful life without meaningful work. Perhaps, then you might gain that great tranquility that comes from knowing that you've had a hand in creating something of intrinsic excellence that makes a contribution. Indeed, you might even gain that deepest of all satisfactions: knowing that your short time on this earth has been well spent, and that it mattered.

Not every financial company toppled during the 2008 crisis, and some seized the opportunity to take advantage of weaker competitors in the midst of the tumult.

A dream is a feeling that sticks - and propels.

The best CEOs in our research display tremendous ambition for their company combined with the stoic will to do whatever it takes, no matter how brutal (within the bounds of the company's core values), to make the company great. Yet at the same time they display a remarkable humility about themselves, ascribing much of their own success to luck, discipline and preparation rather than personal genius.

The signature of mediocrity is chronic inconsistency.