数学思想的真正考验是它能否激发更多的问题。

I'm the kinda guy that's mental, if I smack a chick in the mouth and she keeps smilin'.

Technology should serve the farmer, not complicate their work.

压力一直都在，但我用它来鞭策自己更加努力。

Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.

翻译：天空高高在上而大地在人们脚下，乾坤所代表的天地的位置就确定了；把在人们脚下的和高高在上的罗列出来，高下与卑贱事物的地位就排定了；运动与静止有规律，阳刚和阴柔就明确分开了。