Optimal fiscal policy requires that taxes be smooth over time, as abrupt changes can distort economic decisions.
最优财政政策要求税收随时间平滑，因为突然的变化会扭曲经济决策。
A company's culture is the foundation of its success. Without a strong culture, even the best strategy will fail.
每个词都是通向自由的一步。
说出真相的唯一方式是无畏地言说。
Collaboration across borders and disciplines is the key to solving the world's most pressing health challenges.
You can't go back and change the beginning, but you can start where you are and change the ending.