皮革的真正成本不在价格标签上，而是以节约的水资源、保护的生态系统和公平对待的工人来衡量。
The true cost of leather isn't on the price tag—it's measured in water saved, ecosystems preserved, and workers treated fairly.
世界上充满了显而易见的事物，却没有人去观察。
The only way to do great work is to love what you do.
I don’t regret anything I’ve ever done in my life, any choice that I’ve made.
从n对观测值的样本中获得的相关系数的可能误差是sqrt((1-r²)/(n-2))。