Beauty is not an end in itself, but the result of a perfect solution to a problem.
世界上最好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。
Learn how to take a 20-minute power nap without embarrassment.
在一个场景的沉默中,角色的真相说得最响亮。
In mathematics, the journey from confusion to clarity is the most rewarding experience.