Disciple of Confucius, who judged that he went too far where 子夏 fell short and added 过犹不及, 'going too far is as bad as falling short'. Book 19 of the 论语 opens with his words.
" Bóxué ér dǔzhì, qièwèn ér jìnsī " chūzì 《 Lúnyǔ · Zǐzhāng 》.
'Learn widely and hold firm to your aim; ask earnestly and think about what is near' comes from the Zizhang book of the Analects.
Tips
culture
Told to be sincere in word and earnest in deed, he wrote the words down on his sash (子张书诸绅). From this story, 书绅, 'writing on the sash', became a classical allusion for taking advice to heart.
usage
Book 19 opens 子张曰 'Zizhang said', hence its name. Unusually it records only sayings of the disciples, such as 子夏 and 子贡, with nothing from Confucius himself.