Glossary entry (derived from question below)
Arabic term or phrase:
من أمن العقوبة اساء الادب
English translation:
For those who know no punishment, will misbehave.
Arabic term
Israel
من أمن العقوبة اساء الادب
Aug 6, 2019 01:22: Murad AWAD changed "Field" from "Other" to "Art/Literary"
Proposed translations
United States
A scientist, pianist and a translator
Native in: English 
, Armenian
Works in: German to English, French to English, Spanish to English, and 2 more.
If one knows there is no punishment, one will misbehave
| Thank you, I originally wrote "For those who know no punishment, repeat the offense." My suggestion now is "For those who know no punishment, will misbehave." or: "One knowing there is no punishment, will misbehave." |
| Thank you, I suggested it to the client, they decided to go with "For those who know no punishment, repeat the offense." |
United States
MOROCCAN & HASSANIYA ARABIC TRANSLATOR
Native in: Arabic (Variants: Moroccan, Standard-Arabian (MSA)) 
Works in: English to Arabic, Arabic to English, German to Arabic, and 1 more.
Who grants no punishment, misbehaves
Egypt
Italian- Arabic- English Translator
Native in: Arabic
Works in: Italian to Arabic, English to Arabic, Arabic to Italian, and 3 more.
if they are not getting punished, they will think themselves above the law
Germany
professional and timely manner
Native in: Arabic (Variants: Tunisian, Iraqi, Sudanese, Egyptian, Lebanese, Palestinian, Yemeni, Saudi , UAE, Standard-Arabian (MSA), Moroccan, Syrian, Libyan, Kuwaiti, Algerian, Jordanian)
Works in: English to Arabic, German to Arabic, Arabic
Discussion
the second version you suggested is better in my opinion.