四元数的诞生，如同几何、代数、形而上学和诗歌这四位父母的奇特后代。

我不在乎钱，我在乎的是音乐。

Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.

在海洋保护中，跨国合作至关重要。鱼类不认识政治边界。