道山學海

mountain of Dao, sea of learning (idiom); learning is as high as the mountains, as wide as the seas / ars longa, vita brevis

road / path / CL:條|条[tiao2],股[gu3] / principle / truth / morality / reason / skill / method / Dao (of Daoism) / to say / to speak / to talk / classifier for long thin things (rivers, cracks etc), barriers (walls, doors etc), questions (in an exam etc), commands, courses in a meal, steps in a process / (old) circuit (administrative division)

mountain / hill / anything that resembles a mountain / CL:座[zuo4] / bundled straw in which silkworms spin cocoons / gable

to learn / to study / to imitate / science / -ology

sea of learning / erudite / knowledgeable person / scholarship

surname Hai

ocean / sea / CL:個|个[ge4],片[pian4] / great number of people or things / (dialect) numerous