人生は、運と偶然と、ちょっとの勇気でできている。
能源领域的创新不是可选的；它是可持续增长的必要条件。
The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.