Москва не сразу строилась (Moskva ne srazu stroilas')

Meaning: Great things take time.

Literally: Moscow wasn't built all at once

Example: “Не расстраивайся, что ещё плохо говоришь по-испански: Москва не сразу строилась.” — Don't be upset that your Spanish is still poor: Rome wasn't built in a day.

Equivalents in English, French, Spanish, Japanese, German, and 4 more languages

English: Rome wasn't built in a day
French: Rome ne s'est pas faite en un jour (literally: Rome was not made in a day)
Spanish: Roma no se construyó en un día (literally: Rome was not built in a day)
Japanese: ローマは一日にして成らず (Rōma wa ichinichi ni shite narazu) (literally: Rome was not built in one day)
German: Rom wurde nicht an einem Tag erbaut (literally: Rome was not built in one day)
Italian: Roma non fu fatta in un giorno (literally: Rome was not made in a day)
Portuguese: Roma e Pavia não se fizeram num dia (literally: Rome and Pavia weren't made in a day)
Dutch: Keulen en Aken zijn niet op één dag gebouwd (literally: Cologne and Aachen weren't built in one day)
Polish: Nie od razu Kraków zbudowano (literally: Kraków wasn't built all at once)