И МОСКВА НЕ СРАЗУ СТРОИЛАСЬ

• (И) МОСКВА НЕ СРАЗУ <НЕ ВДРУГ> СТРОИЛАСЬ

[saying]

=====

⇒ any great undertaking starts out small, gradually gaining in scope:

- - Rome wasn't built in a day;

- an oak is not felled with one stroke;

- the longest journey begins with the first step.