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.

我们认识的最美丽的人是那些经历过失败、痛苦、挣扎、失去，并找到从深渊中走出来的人。

钢琴上贴着一条告示：请不要枪杀钢琴师，他已经尽力了。