Oh,Chinese is my own language,In fact,I am born and live in China.

I study maths by myself.I write a lot of notes about many parts modern maths at my sina bloglink text(welcome!) and make some video to teach commutative algebra、functional analysis and other topics at the Chinese internet just like the Khan Academy and MIT open courses.

But some Chinese are not friendly to me,I would rather to be English,but language is a big problem,writing English will spend more energy for me.