Illa etiam monet non omnia verba aspera vera esse, nec omnem vocem blandam veram videri.

Yes. Illa is the feminine singular form of ille, illa, illud. Depending on context, it can mean that woman, that one, or simply she.

In a connected passage, Latin often uses ille/illa where English would just use a personal pronoun. So here illa most naturally means she.

Etiam means also, even, or sometimes still. Here it most naturally means also and modifies the main statement:

• Illa etiam monet = She also warns

Latin often places little adverbs like etiam near the beginning of the sentence.

Monet is from moneo, monere and here means warns, advises, or reminds.

After it, Latin gives the content of the warning with an indirect statement. In this construction:

• the subject of the reported idea goes into the accusative
• the verb goes into the infinitive

So:

• omnia verba aspera vera esse = that harsh words are true
• omnem vocem blandam veram videri = that a flattering voice seems true

More literally, Latin says something like warns not all harsh words to be true, nor every flattering voice to seem true.

They are accusative because they are the subjects of the infinitives inside the indirect statements.

So:

• verba is the subject of esse
• vocem is the subject of videri

This is a standard Latin pattern called the accusative-and-infinitive construction.

English does not usually do this, so it can feel strange at first.

Because indirect statement in Latin uses the infinitive, not a normal finite verb.

So instead of saying:

• omnia verba aspera vera sunt
• omnis vox blanda vera videtur

Latin changes them into indirect statement after monet:

• omnia verba aspera vera esse
• omnem vocem blandam veram videri

That is exactly what you expect after this kind of construction.

No. It means not all harsh words.

That distinction matters:

• non omnia verba aspera = not all harsh words
• nulla verba aspera = no harsh words

So the sentence is not saying that harsh words are never true. It is saying that you should not assume that every harsh word is true.

Nec means and not or nor. It links the second negative idea to the first one.

So the structure is:

• non omnia verba aspera vera esse
• nec omnem vocem blandam veram videri

In smoother English, the second half is often best understood as and not every flattering voice seems truthful.

Not exactly. Because of the way the negatives work here, it means not every flattering voice.

So the two halves match neatly:

• non omnia verba aspera = not all harsh words
• nec omnem vocem blandam = nor every flattering voice

Latin is balancing two partial negatives, not making two absolute negatives.

Because adjectives must agree with the nouns they modify.

• verba is neuter plural, so aspera is neuter plural
• vocem is feminine singular, so blandam is feminine singular

So:

• verba aspera = harsh words
• vocem blandam = a flattering voice or flattering speech

They are adjectives, but here they are being used as predicate adjectives with esse and videri.

That means they are not just part of the noun phrase. Instead, they tell you what the noun is said to be or seem to be:

• verba ... vera esse = the words to be true
• vocem ... veram videri = the voice to seem true

Because they agree with their subjects:

• vera matches verba
• veram matches vocem

Because videri means to seem or to appear.

The sentence is making two related but slightly different points:

• harsh words are not always actually true
• flattering speech does not always seem trustworthy or appear truthful

Also, videri is formally the passive infinitive of videre, but very often it simply means to seem.

Latin word order is much freer than English word order because Latin endings already show what each word is doing.

This sentence is arranged in a very balanced way:

• omnia verba aspera vera esse
• omnem vocem blandam veram videri

Each half has:

• an accusative subject
• an adjective describing it
• verus as a predicate adjective
• an infinitive at the end

So the order is not random. It creates a neat parallel structure, which Latin likes very much.