What do you mean, logical?

A clear head means speaking or doing things in an orderly way.

The head is the Tao, an idiom in China, originally a Buddhist language, which refers to the ubiquitous Tao. Later, I described it as very organized. From the "Continued Lantern Record Huili Dongyuan Zen Master", "Knowing the head is all the way, and the method is round." .

Synonyms of "head-to-head" are: orderly, and antonyms are: incoherent and disorderly; Head-to-head is a commendatory term and a subject-predicate idiom. Can be used as adverbial and complement. With praise.