最终,我们记住的不是敌人的话语,而是朋友的沉默。
旅行,就像梦一样,是一扇从现实世界通向尚未被发现的世界的门。
Quality is not a concept; it is a reality.
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.