1. i like the style of the book: introduction to physical chemistry by Donald A. McQuarrie. He draw a question as title for each section, therefore gives reader a clear perspective of what to learn. I should try to mimic this method to guide my random study.

The way i study is too random. I am too greedy, trying to finish a book quickly without understanding.

2. still the same thing. to avoid lost track of research, propose a question to solve each time