如果我们今天不对塑料废物负责，我们将给后代留下难以承受的负担。
If we don’t take responsibility for our plastic waste today, we’ll leave a burden too heavy for future generations to bear.
Persist in doing what you love, one day you will be seen.
The past beats inside me like a second heart.
数学不是观赏性运动——你必须参与其中才能欣赏它的美。