Beware the barrenness of a busy life.
当心碌碌无为的生活。
I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That's how I refuel.
出自《海国图志序》。善于学习外国的长处，就能够征服外国;不善于学习外国的长处就会被外国所征服。
"语言是唯一的家园。"
The mathematician's best work is art, a high perfect art, as daring as the most secret dreams of imagination, clear and limpid.
