The following are some famous quotes and their authors suitable for use in high school essays:

1. "Knowledge is power." - Francis Bacon

2. "Reading thousands of volumes, writing like a spirit." - Du Fu

3. "The sky is moving vigorously, and a gentleman strives to constantly strive for self-improvement; the terrain is turbulent, and a gentleman carries great virtues." - "Book of Changes"

4. "Don't do good deeds because they are small, and do not do evil because they are small." - "Mencius"

5. "Youth is for Those who struggle should not waste their years. " - Tao Xingzhi

6. "The road is long and long, and I will go up and down to pursue it." - Qu Yuan

7. "The Envoy of Reading. People are enriched, thinking makes people profound, and communication makes people clear. " - Qian Zhongshu

8. "Clearness in world affairs is knowledge, and understanding of human feelings is writing." - Zeng Guofan

9. . "No one has died since ancient times, and his loyalty will be remembered by history." - Wen Tianxiang

10. "Genius is 99% sweat and 1% inspiration." - Edison ( Thomas Edison)

These famous quotes can help you better express your opinions and increase the readability and depth of your composition. Remember to cite the author when citing. This shows your respect for intellectual property and academic integrity.