You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself. That is something you have charge of.

Retire into yourself and ask yourself this question: Must I write？ If the answer is yes， then you must keep writing.

Sustainability is no longer an option; it's a necessity for survival.

To understand the universe, you must understand the language in which it is written, and that language is mathematics.