Hold on, happiness will knock on the door. What does this sentence mean?

Success lies in persistence, and happiness will eventually come.

Persistence (nouns, adjectives, verbs), Chinese vocabulary. Pinyin: jiān chí means strong-willed, persistent and patient. Persistence means not changing, not wavering, and being consistent. Persistence is a good sign of willpower. Persistence is also a sign of perseverance.

Be consistent with one thing, never give up, never give up. "New Tang Book Yuan Lian Biography": "Those who understand chapters and sentences stick to what they said before and refuse to apply. They are suspicious and know the new, and sure enough. " The second fold of Jacky Guangzu's "One Yin Geng Xin": "If you insist on rigid words, you will disobey your orders and will be rewarded." He Ming Liang Jun's Four Friends Zhai Cong Shi Shuoer: "But the host insisted on this proposal. If something happens, the disaster of genocide is not far away. " "Qing Draft Liu Chongchuan": "Xu encouraged the Corps to persevere, and the thief was poor and begged for surrender, so he returned. Mao Zedong's conversation with British journalist bertram: All these prove that we insist on strengthening the United front, implementing the revolutionary policy and carrying out this policy in War of Resistance against Japanese Aggression. Mao Zedong's "Be a Thorough Revolutionary": "Stick to the truth and correct mistakes.