Good is the enemy of great.. The vast majority of good companies remain just that - good, but not great.

The most effective leaders of companies in transition are the quiet, unassuming people whose inner wiring is such that the worst circumstances bring out their best. They're unflappable, they're ready to die if they have to. But you can trust that, when bad things are happening, they will become clearheaded and focused.

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.

Discipline should amplify creativity rather than stifle it.

We must reject the idea... Well-intentioned, but dead wrong... That the primary path to greatness in the social sectors is to become "more like a business." Most businesses... Like most of anything else in life... Fall somewhere between mediocre and good.

The essence of profound insight is simplicity.

The signature of mediocrity is chronic inconsistency.