现在这个数学书只有2种,一种啊你看完第一页你就看不下去了,还有一种你看完第一句话你就看不下去了。
这句话杨在不同场合说过多次,每次表述时可能有个别字的差异。
It is only very ugly or very beautiful women who ever hide their faces.
The discovery of gravitational waves has opened a new window to the universe.
Stay hungry, stay foolish.
If you never want to be criticized, for goodness' sake don't do anything new.