A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

The best way to cheer yourself up is to try to cheer somebody else up.

在计算机科学的世界里，唯一不变的就是变化。

积极情绪不是微不足道的奢侈品，而是最佳功能的关键必需品。

思考是一种计算形式。

成功投资的关键是将你支付的价格与你获得的价值联系起来。