煤炭开采的创新不仅仅是技术问题,更是思维方式的转变。
I don't chase fame or fortune, only inner fulfillment.
写作的行为是一种乐观的行为。如果你觉得它不重要,你就不会费心去做。
I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.
实现明天的唯一限制将是我们今天的疑虑。