花尽可能多的时间精心设计电子邮件的标题,因为这往往是人们唯一会看的内容。
White is the most wonderful color because within it one can find all the colors of the rainbow.
Stay hungry, stay foolish.
数学研究是一次进入未知的旅程,每一次发现都为新的谜题打开了大门。