(り) (n) (1) reason; principle; logic; (2) {Buddh} (See 事・じ) general principle (as opposed to individual concrete phenomenon); (3) (in neo-Confucianism) the underlying principles of the cosmos; (P) [EDICT]
(ことわり) (n) (See 道理) reason; truth; way of things; justice [EDICT]
(lǐ, ㄌㄧˇ) texture; grain (of wood); inner essence; intrinsic order; reason; logic; truth; science; natural science (esp. physics); to manage; to pay attention to; to run (affairs); to handle; to put in order; to tidy up [CE-DICT]
解
(かい) (n) solution (of equation) [EDICT]
(jiě, ㄐㄧㄝˇ) to divide; to break up; to split; to separate; to dissolve; to solve; to melt; to remove; to untie; to loosen; to open; to emancipate; to explain; to understand; to know; a solution; a dissection [CE-DICT]