Diversity is not just a metric to be strived for; it is an integral part of a successful business.

"The best stories are the ones that make you feel something."

"The past is a candle at great distance: too close to let you quit, too far to comfort you."

【讲解】：（教学生）不到他苦思冥想怎么也弄不明白的时候，不去开导他；不到他想说而又说不出来的时候，不去启发他。告诉他（四方形）的一个角，他不能由此推出另外三个角，就不再往下教他（新知识）了。