"The past is a shadow that follows us, but it is the light ahead that guides us."
过去是跟随我们的影子，但前方的光才是引导我们的。
"The act of writing is an act of hope."
学习数学的唯一方法就是做数学。
You have to write the book that wants to be written. And if the book will be too difficult for grown-ups, then you write it for children.
不理解一个人，就往往会把他当成傻瓜。
All writing is autobiography.