反馈是一个强大的概念，在自然系统和技术系统中被广泛使用。

The basis of shame is not some personal mistake of ours, but the ignominy, the humiliation we feel that we must be what others want us to be.

The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.

"You can't always get what you want, but sometimes, you get what you need."

可持续性不是一种选择；它是我们星球未来的必需品。