(Physics is) a good framework for thinking....Boil things down to their fundamental truths and reason up from there.
物理是思想的框架。 。。。追索到事情的本质，再从那里思考下去。
The development of the vital forms under the influence of external conditions is a subject of the highest importance.
The best way to create interest in a subject is to render it worth knowing, which means to make the knowledge usable.