"He who seeks peace must remember that the purest joy is found in giving without expectation."

"It is a timeless truth that a dream nurtured by daily toil will inevitably outshine a wish born of idle hope — an essential principle for the reflective life."

"It is a unyielding truth that to lead with integrity is to walk the narrow path where words and actions are one."

"It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years."

"I'd call what I do pop music, but it's folky and electronic and it doesn't really sound like much else."

"There's also a certain rhythm to the way Jews talk that might be funny."

"To know how to suggest is the great art of teaching. To attain it we must be able to guess what will interest we must learn to read the childish soul as we might a piece of music. Then, by simply changing the key, we keep up the attraction and vary the song."

"In music the passions enjoy themselves."