机器学习中的挑战不仅仅是发现数据中的模式，而是发现能够推广到新的、未见过的数据的模式。
"The challenge in machine learning is not just to find patterns in data, but to find patterns that generalize to new, unseen data."
The unfinished business of gender equality is one of the defining challenges of our time.
Space must be felt to be understood.
The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.
忍耐是生活的最重要技能。