永远不要回头看，除非你想走回去。
Instead of singing like the birds, I silently smiled at my incessant good fortune.
A good editor knows when to cut and when to hold.
即使鬼神不存在，这也可以用来聚集众人来欢乐，使得邻里亲近。
农业效率绝不应以牺牲动物福利为代价。
The ethical lines we draw today will shape the science of tomorrow.