数学之美在于它能够如此精确地描述宇宙。

The power elite is composed of men whose positions enable them to transcend the ordinary environments of ordinary men and women; they are in positions to make decisions having major consequences.

The gratitude of every home in our Union goes out to the brave men who have fought and died in the service of our country.

A liberdade é um bem que não tem preço.

成功的关键是让自己身边围绕着最优秀的人，并给予他们创造的自由。