A mathematician is a device for turning coffee into theorems.
世界历史可以这样总结:强国总行不义。等到他们醒悟了,他们不已经不再强了。
在石油和天然气行业,效率和责任必须齐头并进。
The very essence of the creative is its novelty, and hence we have no standard by which to judge it.
Success is not final, failure is not fatal: It is the courage to continue that counts.