A mind is like a parachute. It doesn't work if it isn't open.

Frank Zappa

He who knows he has enough is rich. Perseverance is a sign of will power. He who stays where he is endures. To die but not to perish is to be eternally present.

Lao Tzu

It was pride that changed angels into devils; it is humility that makes men as angels.

Augustine of Hippo

To know that you do not know is the best. To think you know when you do not is a disease. Recognizing this disease as a disease is to be free of it.

Lao Tzu

Leaders are more powerful role models when they learn than when they teach.

Rosabeth Moss Kantor

If every choice you make comes from an honest place, you're solid, and nothing anybody can say about you can rock you or change your opinion.

Angelina Jolie