The beauty of mathematics is that it is eternal, it doesn't change.
每一天都是产生影响的新机会。
A vida é uma festa que não se repete.
解析：自然的法则，是损减有余来补充不足；人类社会世俗的作法却不然，而是损减贫穷不足来供奉富贵有余。
"Children's books should be as diverse as the children who read them."
你内在的力量是无限的，只要你意识到它。
真正的领导力意味着帮助他人变得比他们自己认为的更好。