年轻人必须为履行生活所赋予他们的职责充实自己,同时要抵制生活的诱惑。
The historian’s first duty is to the truth.
云不是一个地方,而是一种做生意的方式。
The proletarian movement is the self-conscious, independent movement of the immense majority, in the interest of the immense majority.