The design of this building reflects the classicism with its elegance and simplicity.

classicism 是由 classic（古典的）加上后缀 -ism 构成的名词。-ism 表示"主义、学说、特性"，classicism 合起来指"古典主义"，强调古希腊和古罗马艺术风格的优雅、对称和简洁等特征。