James C. Collins

“Good is the enemy of great. And that is one of the key reasons why we have so little that becomes great. We don't have great schools, principally because we have good schools. We don't have great government, principally because we have good government. Few people attain great lives, in large part because it is just so easy to settle for a good life.”
― Jim Collins, Good to Great: Why Some Companies Make the Leap... and Others Don't

“When [what you are deeply passionate about, what you can be best in the world at and what drives your economic engine] come together, not only does your work move toward greatness, but so does your life. For, 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 rare 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 here on this earth has been well spent, and that it mattered.”
― Jim Collins, Good to Great: Why Some Companies Make the Leap... and Others Don't