真理的概念在任何足够强大以包含算术的形式系统中都是不可定义的。
The elements of consciousness are sensations, images, and affections.
The key to success in computer science is not just about writing code, but understanding the underlying principles and theories that make it work.
"I suppose it's like the Titanic. The iceberg was real, but the ship was just a ship."
可持续性不是一种选择;它是农业未来的必需品。