講理

to argue / to reason with sb / to talk sense / to be reasonable

to speak / to explain / to negotiate / to emphasize / to be particular about / as far as sth is concerned / speech / lecture

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

completely unreasonable