The uniformity of the hybrids in the first generation, the dissimilarity in the second, are facts which cannot escape the attention of an accurate observer.

压力一直都在，但我用它来鞭策自己更加努力。

"We are all in the gutter, but some of us are looking at the stars."

词语的美在于它们唤起情感的能力。

The PAC learning framework provides a formal way to quantify the learnability of a concept class.

Success is not about how much money you make, it's about the difference you make in people's lives.

Though the water running in the fountain be every one's, yet who can doubt, but that in the pitcher is his only who drew it out?

Sustainability isn't a trend; it's a responsibility we owe to future generations.