We act as though comfort and luxury were the chief requirements of life, when all that we need to make us happy is something to be enthusiastic about.
To the artist there is never anything ugly in nature.
经济模型的价值在于其解释和预测的能力。
未来总是一个模糊的旋转，一种可能性，而不是一个地方。
I don't believe in harmony in the traditional sense. I believe in intensity.
相关系数的可能误差不是可以从第一原理推导出来的东西，而是必须通过经验找到的。
To promote the high-quality development of the coal industry, we must rely on technological innovation and intelligent upgrading.