人应当怀有一颗善心，我觉得这个至关重要。
I think it matters whether someone has a good heart.
The United States should not try to spread democracy around the world.
The more we try to escape the system, the more we are caught in its web.
创新是解决未来能源挑战的关键。
最重要的是为正确的内容找到正确的形式。
The most challenging designs often lead to the most rewarding results.
The challenge in auction theory is to balance simplicity with strategic sophistication.
"The worst lies are the ones we tell ourselves."