渊

deep pool / deep / profound

variant of 人[ren2] / "person" radical in Chinese characters (Kangxi radical 10), occurring in 兒, 兀, 兄 etc

child / son

non-syllabic diminutive suffix / retroflex final

"water" radical in Chinese characters (Kangxi radical 85), occurring in 沒|没[mei2], 法[fa3], 流[liu2] etc / see also 三點水|三点水[san1 dian3 shui3]

rice / CL:粒[li4] / meter (classifier)

abyss

erudite / profound / learned / extremely knowledgeable

Liu Yuan (c. 251-310), warlord at the end of the Western Jin dynasty 西晉|西晋[Xi1 Jin4], founder of Cheng Han of the Sixteen Kingdoms 成漢|成汉[Cheng2 Han4] (304-347)

Chidori ga fuchi, national war cemetery in Tokyo / also called Tomb of the Unknown Soldier

honest and far-seeing

distance between two poles / poles apart

a complete contrast / totally different

Obuchi (Japanese surname)

Obuchi Keizo (1937-2000), Japanese politician, prime minister 1998-2000

abyss

Li Yuan, personal name of first Tang emperor Gaozu 唐高祖[Tang2 Gao1 zu3] (566-635), reigned 618-626

vast and profound

deep valley

rich and variegated

broad and extensive (of knowledge etc)

erudite but open-minded

see 臨淵羨魚，不如退而結網|临渊羡鱼，不如退而结网[lin2 yuan1 xian4 yu2 , bu4 ru2 tui4 er2 jie2 wang3]

better to go home and weave a net than to stand by the pond longing for fish (idiom) / one should take practical steps to achieve one's aim

no less than from heaven to the abyss (idiom); differing widely / worlds apart / the gap couldn't be bigger

abyss / deep chasm