初心 heart of intention

chūxīn
初心
heart of intention, original intention, original aspiration

Chūxīn bù gǎi
初心不改
original aspiration hasn't changed

Wǒ huì yǒngyuǎn bù wàng chūxīn, jiānchí zìjǐ de jiàoshī mèng.
我会永远不忘初心，坚持自己的教师梦。
I will always follow my heart and pursue my dream of becoming a teacher.

Zhōngguó gòngchǎndǎng yījīng dànshēng, jiù bǎ wéi zhōngguó rénmín móu xìngfú, wéi zhōnghuá mínzú móu fùxīng quèlì wèi zìjǐ de chūxīn shǐmìng.
中国共产党一经诞生，就把为中国人民谋幸福、为中华民族谋复兴确立为自己的初心使命。
Since they very day of its founding, the Party has made seeking happiness for the Chinese people and rejuvenation for the Chinese nation its aspiration and mission.