可持续性不是一种选择，而是唯一的出路。

"Die Frage nach der Technik ist die Frage nach dem Wesen der Technik."

The rise of China is the most significant geopolitical event of the 21st century.

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.