The study of economics is ultimately the study of human behavior and its consequences.

It must be remembered that while sympathy with joy intensifies the sum of joy in the world., sympathy with pain does not really diminish the amount of pain. It may make man better able to endure evil, but the evil remains.

Success is a journey, not a destination.

Never underestimate the power of small, consistent improvements—they lead to big results over time.

天然气开采的创新是满足世界日益增长的能源需求同时减少环境影响的关键。