贫困和无知可能逐渐消失的希望,很大程度上源于十九世纪工人阶级的稳步进步。
实现明天的唯一限制将是我们今天的疑虑。
I think that’s the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.
Sustainability is not about doing less harm - it's about doing more good.