The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.
凡事需多听但少言;聆听他人之意见,但保留自己之判断。
好的设计就是尽可能少的设计。
You could rattle the stars. You could do anything, if only you dared. And deep down, you know it, too. That’s what scares you most.