#理由 (reason; basis)
名詞佢講嘅嘢幾有道理。
keoi5 gong2 ge3 je5 gei2 jau5 dou6 lei5
What he said is quite reasonable.
#理論，通常同道德、道義有關 (theory, often related to ethics)
人老咗好鍾意成日講道理，難免有啲長氣。
jan4 lou5 zo2 hou2 zung1 ji3 seng4 jat6 gong2 dou6 lei5, naan4 min5 jau5 di1 coeng4 hei3
As people grow old they often love droning on about ethics.
#理由 (reason; basis)
名詞佢講嘅嘢幾有道理。
keoi5 gong2 ge3 je5 gei2 jau5 dou6 lei5
What he said is quite reasonable.
#理論，通常同道德、道義有關 (theory, often related to ethics)
人老咗好鍾意成日講道理，難免有啲長氣。
jan4 lou5 zo2 hou2 zung1 ji3 seng4 jat6 gong2 dou6 lei5, naan4 min5 jau5 di1 coeng4 hei3
As people grow old they often love droning on about ethics.
reason; argument; sense; logic
不講道理
to be unreasonable
你說得有道理。
You have a point.
其實這種道理，到了現在，他們也該早已懂得，……
Actually, they should have long since understood this kind of reasoning...
principle; rule; truth; philosophy
人生道理
philosophies of life
這句話的道理你應該清楚。
You should understand the principle contained in this sentence.
道理無窮，學者先要不得有自足心。
Truth is infinite; a scholar cannot afford to have a complacent attitude.
way; plan
明日先把案內人證提來，再作道理。
理由；情理
做人要讲～。
道理唔通講陰騭
大道理
有道理
講道理
大條道理
擺事實，講道理