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))。
The world is everything that is the case.
A real decision is measured by the fact that you’ve taken a new action. If there’s no action, you haven’t truly decided.
The power elite is composed of men whose positions enable them to transcend the ordinary environments of ordinary men and women; they are in positions to make decisions having major consequences.
Success comes when you focus on solving problems, not just making profits.
在一个不自由的世界里，唯一的应对方式是变得如此绝对自由，以至于你的存在本身就是一种反叛。
Sustainability isn't a cost; it's an investment in relevance and longevity.
Technology should serve sustainability, not just profitability.