1. Only when people devote themselves to society can we find out the meaning of that short and risky life. -Einstein

2. The fate of those who are the first to devote themselves to a new life with vigor and vitality is enviable. -Marx

3. Only by dedicating oneself to society can one find out the meaning of what is actually a short and risky life. -Einstein

4. Revolutionary ideal is not a dispensable ornament, but the driving force of one's life. With ideal, one has a soul. -Wu Yunduo

5. Without faith, there is no worthy character and life; Without faith, there is no real country. -Whitman

6. Everyone has a spring, which constantly spews out life, vitality and love. If we don't dig ditches for it, it will turn the surrounding land into a swamp. -Mark rutherford

7. The discovery of truth or the completion of moral responsibility arouse our joy and make our whole life tremble. -Croce