Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

My life is an improvisational performance.

Every object has potential; it's our job to unlock it.

The more you know, the less you understand.

"The truth is rarely pure and never simple."

The end of all our exploring will be to arrive where we started and know the place for the first time.

可持续性不是一种选择，而是我们对后代的责任。