Every man has a right to his opinion, but no man has a right to be wrong in his facts.
写作是一种自由的行为,但也是一种责任。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的:它是关于理解的。
The world has nothing to fear from military ambition in our Government.
In the energy sector, innovation isn't just an option—it's a necessity.