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.
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
板块构造理论是地质学的统一理论。
你的声音就是你的力量,永远不要让任何人压制它。
The truth is not always beautiful, nor beautiful words the truth.