Separate the processes of creation from improving. You can’t write and edit， or sculpt and polish， or make and analyze at the same time. If you do， the editor stops the creator. While you invent， don’t select. While you sketch， don’t inspect. While you write the first draft， don’t reflect. At the start， the creator mind must be unleashed from judgement.

The process of doing mathematics is more important than the result.

I like to make work that is accessible but also has depth.

"A book is a world you can hold in your hands."

市场瞬息万变，唯有以变应变才能立于不败之地。