亲眼目睹世道的变化趋向，才知道国家治乱的关键必定在于人心的向背和风俗的好坏。

The future of energy is not either/or - it's about finding the right mix of all available solutions.

You don’t need a weatherman to know which way the wind blows.

The essence of mathematics lies in its freedom.

建筑的魔力在于墙壁之间的空间。