曾经尝试过，曾经失败过。没关系。再试一次。再失败一次。失败得更好。

I know that self-promotion happens a lot and it is not a bad thing. But I do not regard it as something positive.

可持续性不仅仅是关于材料，而是关于维持人们的生活和尊严。

Psychology should illuminate how we cope with our environment.