The wine of youth does not always clear with advancing years; sometimesit grows turbid.
青春美酒并不总是随岁月流逝而日渐清彻，有时它会日渐混浊。
圆的周长大于任何内接等边多边形的周长，小于任何外切多边形的周长。
I am fascinated by the dark side of human nature.
Security in the digital world is not just about keeping secrets, but also about ensuring integrity and availability.
The artist’s role is to disturb.
The end is in the beginning and yet you go on.