Questions & Answers about Для меня время — более ценный ресурс, чем золото.
Why is золото in the Nominative case here?
When you use чем (than) to compare two things, the second thing takes the same case as the first thing. We are comparing время (time), which is the subject in the Nominative case, to золото (gold). Therefore, золото is also in the Nominative case.
Why do we use более ценный instead of a single comparative word?
In Russian, there are two ways to say 'more'. Single-word comparatives usually stand alone. But here, 'more valuable' directly describes the noun ресурс. When a comparative acts as an adjective attached to a noun, we use более (more) plus the normal adjective, so it can take the correct gender and case endings (masculine Nominative in this case).
Why is there a dash (—) between время and более?
The dash replaces the present tense verb 'to be' (is). When the subject (время) and what it is defined as (ресурс) are both nouns in the Nominative case, Russian writing uses a dash to connect them.
Why is меня used instead of мне at the start of the sentence?
The phrase 'for me' uses the preposition для (for). This preposition always requires the Genitive case, and меня is the Genitive form of я (I). Мне is the Dative case, which you would use to mean 'to me'.