If a nation wants to stand at the highest peak of science, it must not be without theoretical thinking for a moment. ——Engels

The history of knowledge is like a great polyphony, in which the voices of all nations sound one after another. ——Goethe

Protecting national languages ??is conducive to the inheritance and development of human civilization, as well as to national unity and social stability. ——Zhou Haizhong

Ideal is nothing more than the highest peak of logic, and beauty is the pinnacle of reality. An artistic nation is at the same time a thoroughgoing nation. To love beauty is to demand light. ——Hugo