我一直是这个世界上的陌生人，一个访客，一个游客。
I have always been a stranger in this world, a visitor, a tourist.
CRISPR提出的伦理问题不是障碍，而是必要的对话。
建筑不是关于时尚，而是关于永恒。
Farmers are the original environmentalists; we must support their work.
"I’m a very positive thinker, and I think that is what helps me the most in difficult moments."