I find myself always worrying about tomorrow...Then when tomorrow becomes today, I start worrying about tomorrow again...
The future of coal industry lies in clean and efficient utilization.
历史学家必须是诗人,不是为了创造,而是为了重新创造。
决策分析的本质是将复杂的决策分解为更简单、更易管理的组成部分。
如果我不能表达自己,我就无法在这个星球上生活。