采矿技术创新不是可选项 - 它对我们的生存和发展至关重要。
Innovation in mining technology isn't optional - it's essential for our survival and growth.
股市的短期波动是不可预测的，但长期趋势是可以预测的。
The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.
解释：屋顶是否有漏洞，下面的人才知道。
生存还是毁灭，这是个问题。
【释义】选拔任用人才，确实是国家的当务之急。
生活就是关于成长和改变。
一个科学家的真正价值是由他思想的独创性来衡量的。
In the new century, I think we will all be insane.