"Complexity theory teaches us that not all problems are created equal; some are inherently harder than others."

我不在乎酷不酷。我在乎的是快乐。

——1963年6月25日在西德市政厅柏林墙前的演说

出自先秦《荀子·荣辱》。赠人以善良之言，好比冬天的衣服一样让人感到温暖；说伤害别人的话，比用矛戟刺人还要厉害，为人说话不可太刻薄。

If we are a good team and know what we want to do, one of us can defeat ten of them.

A building must be rooted in the ground but open to the sky.