Handy measure: the distance between your fingertips of your outstretched arms at shoulder level is your height.

我不是一个回头看的人。我总是向前看。

贪婪读书，终生学习，保持好奇，日日增慧。

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.