Those who do not have power over the story that dominates their lives, the power to retell it, rethink it, deconstruct it, joke about it, and change it as they change, truly are powerless, because they cannot think new thoughts.

There's only one corner of the universe you can be certain of improving，and that's your own self.

知识的唯一来源是经验。

技术将引领我们进入能源勘探的新领域。

安全是我们所有作业中的首要任务。

为社会正义而斗争必须成为任何教育实践的核心。

世界的进步，部分依赖于那些未被历史记载的行为；你我如今的处境还不至于太糟，有一半要归功于那些默默无闻、忠诚生活，并长眠于无人祭扫的坟墓中的人们。