第一代杂种的同一性,第二代的不相似性,是精确观察者无法忽视的事实。
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.
在每个字里,都有作家灵魂的一部分。
A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.
成为你希望在世界上看到的变化。