The great poems are the ones that survive their own occasions.

The fountain of content must spring up in the mind, and they who have so little knowledge of human nature as to seek happiness by changing anything but their own dispositions will waste their lives in fruitless efforts.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

Losing oneself in infinity is the highest freedom.

Leadership is about inspiring people to do things they never thought they could.

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

The past is not dead. It is not even past.

The magic number 150 suggests that the size of our social networks is limited by the size of our brains.