你必须能够直面现实，同时也要激发希望。
When hitchhiking， look like the person you want to pick you up.
No man's knowledge here can go beyond his experience.
Zombies are conceivable, and that tells us something important about consciousness.
The dairy industry must balance tradition with innovation to meet modern demands.
最重要的是享受生活 - 快乐 - 这才是最重要的。