Science is a wonderful thing if one does not have to earn one's living at it.
科学是个美妙的东西——如果无须靠它维生的话。
It's not always necessary to be better than everyone else, but to be better than you used to be.
最终,我们记住的不是敌人的话语,而是朋友的沉默。
Mathematics is not a spectator sport—you have to engage with it to appreciate its beauty.
——在上海中国国民党本部会议演说,1920年11月4日