一流智力的考验是同时持有两种相反的观点，并仍然保持运作的能力。
The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
诗歌是一种游戏，但一种严肃的游戏。
The past is always with us, for it feeds the present.
The pace of change will never be slower than it is today.
The pursuit of knowledge is a never-ending journey, and that is what makes it so exciting.