充分活着就是接受欢乐与悲伤。
States are rational actors that seek to maximize their power and security in an anarchic international system.
"A wordless book speaks in a universal language."
你唯一应该努力超越的人,就是昨天的自己。
The future of food depends on balancing tradition with innovation.
一本好书是一次伟大的冒险。