一个词的意义不是心智实体，而是社会实践。
The only limit to our realization of tomorrow is our doubts of today.
True innovation happens when you step outside your comfort zone.
生命最伟大的礼物是能够想象它的另一种可能。
Without food, man can live at most but a few weeks; without it, all other components of social justice are meaningless.