zuàn jiān yǎng gāo
delving firmly, eyes raised (idiom); from Analects: Confucius' disciple 顏淵|颜渊[yán yuān] aspires to the heights of Confucius's teaching
to dedicate oneself to a high goal and learn intensively
meticulous and diligent study
zuān jiān yǎng gāo
lit. looking up to it, it gets higher; boring into it, it gets harder (idiom) (from Analects)
fig. to delve deeply into one's studies
meticulous and diligent study