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每一顆播種的種子都是對未來的承諾。

最好的兒童書籍是那些不會居高臨下地對孩子說話的書籍。

The best thing about getting older is that you don't lose all the other ages you've been.

The only limit to your impact is your imagination and commitment.

"The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all."

解決問題是智能系統的核心活動。