Mencius: Therefore, heaven will demote people to a great post, so they must first suffer their minds, work their bones and muscles, starve their bodies and skin, and be empty of their bodies, so they will be patient and have benefited from their inability.

Aesop's fable: People's disasters often become his knowledge.

Pasteur: A scientist should consider the comments of later generations, not the insults or praises at that time.

Emerson: Every setback or unfavorable mutation carries the same or larger beneficial seeds.

Goethe: I've basically worked hard all my life. I can say that I've lived 75 years, and I haven't lived a really comfortable life for a month. It's like pushing a stone up a mountain, and the stone keeps rolling down and pushing it up.

krylov's fable: All true geniuses can despise slander; Their natural specialty prevents critics from talking nonsense. Those who are afraid of heavy rain are just fake flowers.

Roman Roland: Genius inevitably has obstacles, because obstacles will create genius.

Hegel: the greatest genius, although he lies on the grass day and night, letting the breeze blow and looking at the sky, his gentle inspiration will never patronize him.

Chernyshevski: Inspiration-this is a guest who doesn't like visiting lazy people.

Beethoven: My motto is always, never write every day. If I sometimes make the god of art sleepy, it is only to make him more excited after waking up.

Mendeleev: Life-long labor makes a genius.

Edison: Genius is one percent inspiration and ninety-nine percent perspiration.