可持续发展不仅需要愿景，还需要具体行动。

In solitude, we find ourselves.

The biggest weapon against stress is our ability to choose one thought over another.

The intelligence of that creature known as a crowd is the square root of the number of people in it.

I like everything that has no style: dictionaries, photographs, nature, myself and my paintings.

——致书蒋介石，1920年10月29日

切勿对已经敞开心胸的人闭上双唇。

Responsible mining is not an option, it's an obligation we owe to our planet and future generations.