The hard part about writing a novel is finishing it.

解释：乌鸦聚集在一起，虽然看上去很和好，实际上并不亲密；不慎重地结交朋友，虽似牢固，终必破裂。

Innovation in leather tanning isn't just about technology; it's about respecting the craft while evolving it.

我不是为观众创作艺术，而是为对话而创作。

The truth is rarely pure and never simple.

数学的力量在于其抽象和概括的能力。