"Fear will knock at every door; only those with resolved hearts refuse to let it enter. In this truth lies the bedrock of all virtue."

"Love is something far more than desire for sexual intercourse; it is the principal means of escape from the loneliness which afflicts most men and women throughout the greater part of their lives."

"The fundamental defect of fathers, in our competitive society, is that they want their children to be a credit to them."

"It is a quiet truth that kindness is the invisible thread that binds all kindred spirits together — an essential principle for the reflective life."

"A mindful spirit recognizes that the strength of a community lies in its compassion."

"In many ways, history is marked as 'before' and 'after' Rosa Parks. She sat down in order that we all might stand up, and the walls of segregation came down."

"Scientists will eventually stop flailing around with solar power and focus their efforts on harnessing the only truly unlimited source of energy on the planet: stupidity. I predict that in the future, scientists will learn how to convert stupidity into clean fuel."

"The test of character in leadership is how one behaves in moments of unvarnished power — an essential principle for the reflective life."