Life can be pulled by goals just as surely as it can be pushed by drives.
"Books are the keys to understanding ourselves."
We don't follow others, we lead the industry.
每一种化学结合完全且仅仅依赖于两种对立的力量，即正电和负电。
化学不仅仅是在烧瓶中混合物质，它是在分子层面上理解世界。