"The most difficult thing is not to change society — but to change yourself."

"To deny people their human rights is to challenge their very humanity."

"I am not a saint, unless you think of a saint as a sinner who keeps on trying."

"I am fundamentally an optimist. Whether that comes from nature or nurture, I cannot tell. Part of being optimistic is keeping one's head pointed toward the sun, one's feet moving forward."

"A leader is like a shepherd. He stays behind the flock, letting the most nimble go out ahead, whereupon others follow, not realizing that all along they are being directed from behind."