有道是

as they say, ... / as the saying goes, ...

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

to have attained the Way / (of a government or a ruler) enlightened / wise and just

road / path / CL:條|条[tiao2],股[gu3] / principle / truth / morality / reason / skill / method / Dao (of Daoism) / to say / to speak / to talk / classifier for long thin things (rivers, cracks etc), barriers (walls, doors etc), questions (in an exam etc), commands, courses in a meal, steps in a process / (old) circuit (administrative division)

variant of 是[shi4] / (used in given names)

to be (followed by substantives only) / correct; right; true / (respectful acknowledgement of a command) very well / (adverb for emphatic assertion)