Leadership means making tough choices today for a better tomorrow.
能源危机是一个可以解决的问题——如果我们现在行动的话。
Knowledge is the highest wealth of humanity, and sharing knowledge is the greatest generosity.
物理学家必须拥有生动的直觉想象力,因为新思想不是通过演绎产生的,而是通过艺术性的创造性想象。