An 800-word composition on the topic of frustration needs to quote proverbs and sayings at the beginning

Failure is the final test of perseverance. ——Bismarck

Still tough despite the hardships, no matter how strong the wind is. ——Zheng Banqiao

Perseverance is eternal enjoyment. —— Blake

For the perseverant, there is no such thing as failure. ——Bismarck

Failure is also what I need. It is as valuable to me as success. ——Edison

Patience and perseverance will always be rewarded. ——Einstein

Adversity and hardship are the highest schools for tempering one’s character. ——Liang Qichao

A failure only proves that our determination to succeed is still strong enough. ——Bo Wei

Wherever sincerity comes, gold and stone will open. —— Cai E

Although patience and persistence are painful things, they can gradually bring you benefits.

——Ovid, ancient Roman poet