The famous sayings about hard work and frugality are as follows:

1. Time is a constant, but it is also a variable. There are infinitely many diligent people and infinitely few lazy people. ——Zi Yan;

2. Science is at home everywhere, ——but it will not produce a good harvest wherever it does not sow seeds. ——Herzen;

3. Invention is one percent intelligence and ninety-nine percent diligence. ——Edison;

4. If human beings want to survive in competition, they must struggle. ——Sun Yat-sen;

5. Only the poor can be independent. Even the most powerful millionaire is not independent. A person who enjoys a ruble is a slave of this ruble. ——Lemont;

6. The decisive factor in forming genius should be diligence. ——Guo Moruo;

7. The most important thing in human life is labor training. Without labor, it is impossible to have a normal human life. ——Rousseau;

8. Work is accomplished by hard work but wasteful by play. Actions are accomplished by thinking and destroyed by following. ——Han Yu;

9. Time is a constant, but it is also a variable. There are infinitely many diligent people and infinitely few lazy people. ——Zi Yan;

10. The vastness of the spirit, the active imagination, and the diligence of the soul are geniuses. —— Diderot;

11. We should remember that our career requires hands, not mouths. ——Tong Dizhou;

12. Blind diligence can indeed create wealth and glory. However, many noble and elegant organs are also deprived of this virtue that can only create wealth and glory. ——Nietzsche.