数学不仅仅是抽象理论的集合,而是描述宇宙的语言。
Mathematics is not just a collection of abstract theories, but a language that describes the universe.
穷人往往缺乏做出正确选择所需的信息,而即使他们拥有这些信息,也常常不信任它。
A teacher must have a healthy body, the skills of a farmer, the mind of a scientist, the interest in art, and the spirit of social reform.