可持续性不再是可选项；它是企业长期生存的必要条件。

数学是神与人类交谈的语言。

I'm not afraid to take risks and step outside of my comfort zone.

成功的秘诀在于对失败的深刻理解。

The greatest glory in living lies not in never falling, but in rising every time we fall.

The most remarkable development of the last quarter of the twentieth century has been the revelation of enormous weaknesses at the core of the world's seemingly strong dictatorships.