| 知 |
zhī bǐ zhī jǐ | to know the enemy and know oneself (idiom, from Sunzi's "The Art of War") |
| 知 |
zhī | to know / to be aware |
| 彼 |
bǐ | that / those / (one) another |
| 知 |
zhī | to know / to be aware |
| 知 |
zhī jǐ | to know oneself / to be intimate or close / intimate friend |
| 己 |
jǐ | self / oneself / sixth of the ten Heavenly Stems 十天干 / sixth in order / letter "F" or Roman "VI" in list "A, B, C", or "I, II, III" etc / hexa |