数学中的合作可以带来任何单一思维都无法独自实现的发现。
Collaboration in mathematics can lead to discoveries that no single mind could achieve alone.
"A good book is the best of friends, the same today and forever."
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
爱你的人如果没有按你所希望的方式来爱你,那并不代表他们没有全心全意地爱你。