符号是思维的媒介。

Thinking is the hardest work there is, which is probably the reason why so few engage in it.

Collaboration across industries is key to solving the world's biggest challenges.

The young do not know enough to be prudent, and therefore they attempt the impossible – and achieve it, generation after generation.

只管走过去，不必逗留着去采了花朵来保存，因为一路上，花朵自会继续开放的。