Nothing in the world is difficult for one who sets his mind to it. Everything is easy in the world, and I'm afraid of careless people. -Yuan Mei, a poet in the Qing Dynasty.

2. Perseverance in success is more important than perseverance in failure. -La Rochefoucauld, French writer

Patience and persistence are painful things, but they can gradually bring you benefits. -Ovid Roman poet

The most terrible enemy is that there is no firm belief. -romain rolland, French writer and thinker

5. I will never waver whether it is the beauty's singing or the hyena's barking, whether it is the crocodile's tears or the wolf's howling. British writer Capman

6. If the will is obedient, no matter how much it is, it will encourage violence. Italian poet Dante

7. Whoever has the will to endure hardship can achieve any goal. -Minard Greek new comedy poet

8. The will not to make any decision is not the will of reality; People who have no personality will never make a decision. -georg wilhelm friedrich hegel German philosopher