一个“履行”的话语不是真或假，而是成功或失败。
A 'performative' utterance is not true or false， but happy or unhappy.
Innovation in plastics isn't optional—it's our responsibility to the planet.
If you love your work, you'll be out there every day trying to do it the best you possibly can, and pretty soon everybody around will catch the passion from you — like a fever.