"Because the world is radically new, the ideal encyclopedia should be radical, too."

"I worked hard at memorizing lists of facts and figures, and carried with me a book of facts."

"I've learned a lot about good and evil. They are not always what they appear to be."

"I hoped that it would be possible to slide slowly from my public life back to the life of teaching and writing that I had always wanted. But things didn't work out that way."

"The last part, the part you're now approaching, was for Aristotle the most important for happiness."

"I was involved, deeply involved, in a deception... I have deceived my friends - and I had millions of them."

"I cannot take back one word or action; the past does not change for anyone."

"Some of you read with me 40 years ago a portion of Aristotle's Ethics, a selection of passages that describe his idea of happiness. You may not remember too well."