It was like when you make a move in chess and just as you take your finger off the piece, you see the mistake you’ve made, and there’s this panic because you don’t know yet the scale of disaster you’ve left yourself open to.

教师必须具有健康的体魄，农人的身手，科学的头脑，艺术的兴味，改革社会的精神。

数学不是一项观赏性运动。你必须亲自去做才能理解它。

We're just five guys who love to sing and perform.

Time is not a thing, thus we can neither waste nor save it; it is always with us.  

唯一真正的发现之旅不在于寻找新的风景，而在于拥有新的眼光。