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.

I only write music for myself, I don't try and appeal to anyone else.

`When asked,"How do you write ?" I invariably answer, "one word at a time.'

If you can't write clearly, you probably don't think nearly as well as you think you do

What a book a devil's chaplain might write on the clumsy, wasteful, blundering, low, and horribly cruel work of nature.

Even if you have nothing to write, write and say so.