1. Living according to moral principles is a happy life. ——Aristotle

2. Only this kind of person is worthy of life and freedom, if he fights for it every day. ——Goethe

3. Only those who are ahead of life and create a new life with their own labor can be said to be truly beautiful. ——Jiang Kongyang

4. There are only people like me who love life, love struggle, and love the construction of a new and better world crazily. Only those of us who have seen through and understood the full meaning of life , will not die casually, and cannot give up life even if there is only a little chance. ——Ostrovsky

5. The pursuit of ideals is the initial motivation for a person to educate himself, and without self-education, it is impossible to imagine a perfect spiritual life. I believe that teaching students to educate themselves is the highest skill and art. ——Suhomlinsky