解释：天地没有完美的功效，圣人没有完备的能力，万物没有完备的用途。

You can't change the past, but you can create the future.

眼睛不仅仅是一种光学仪器；它是心灵认知外部世界的器官。

Science is about understanding the world, and medicine is about applying that understanding to help people.

"The mind evolves to meet practical demands."

语言不是用来隐藏思想的。