我们都在共同努力；这就是秘诀。
We're all working together; that's the secret.
你给予的越多，在生活中得到的就越多。
The human mind is so complex and things are so tangled up with each other that, to explain a blade of grass, one would have to make a diagram of the universe.
In machine learning, the trade-off between bias and variance is crucial for achieving good generalization.