我们不能选择自己的心。我们不能让自己想要对我们或对别人有益的东西。

Leadership is the capacity to translate vision into reality.

The most profound question is not about the existence of God, but about the existence of the world.

穿着粗布衣裳，吃着简单饭菜，这样的快乐哪里需要刻意寻求？

The world has the technology - either available or well advanced in the research pipeline - to feed on a sustainable basis a population of 10 billion people.

我专注于我能控制的事情。