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。
The mathematician's best work is art, a high perfect art, as daring as the most secret dreams of imagination, clear and limpid.