有时看前来像是解决方案比问题多。仔细观瞧,今天的很多问题都是昨天的解决方案带来的结果。
Sustainability isn't a trend; it's our responsibility to future generations.
The history of mathematics is a testament to the ingenuity and creativity of the human mind.
你拥有的最强大的武器是你的声音。