judge

any [judge/lawyer/teacher etc.] worth their salt

any judge, lawyer, teacher etc. who is good at their job. Any lawyer worth his salt should be aware of the latest changes in taxation. No judge worth her salt would attempt to influence the jury.

See also: any, salt, worth

be as sober as a judge

to not be at all drunk. It's awful when everyone else around you has been drinking and you're as sober as a judge.

You can't judge a book by its cover.

something that you say which means you cannot judge the quality or character of someone or something just by looking at them. She doesn't look very intelligent, but you can't judge a book by its cover.

See also: book, can't, cover

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not judge a book by its cover

to not be able to really know about someone or something by simply looking at them. She doesn't look very bright, but you can't judge a book by its cover.

See also: book, cover