持之以恆
(chí zhī yǐ héng)
堅持不懈
(jiān chí bù xiè)
善始善終
(shàn shǐ shàn zhōng)
始終如一
(shǐ zhōng rú yī)
有始有終
(yǒu shǐ yǒu zhōng)