冰炭不言，冷熱自明

ice or coals, whether hot or cold goes without saying (idiom); fig. sincerity is not expressed in words

ice / CL:塊|块[kuai4] / to chill sth / (of an object or substance) to feel cold / (of a person) cold / unfriendly / (slang) methamphetamine

variant of 冰[bing1]

wood charcoal / coal

no; not so / (bound form) not; un-

words / speech / to say / to talk

surname Leng

cold

to warm up / to heat up / hot (of weather) / heat / fervent

self / oneself / from / since / naturally / surely

Ming Dynasty (1368-1644) / surname Ming / Ming (c. 2000 BC), fourth of the legendary Flame Emperors, 炎帝[Yan2 di4] descended from Shennong 神農|神农[Shen2 nong2] Farmer God

bright / opposite: dark 暗[an4] / (of meaning) clear / to understand / next / public or open / wise / generic term for a sacrifice to the gods