Quamvis haec res aspera sit, spes tamen manet.

Because quamvis introducing a concessive clause normally takes the subjunctive in classical Latin.

So:

• aspera est = it is harsh / it is difficult
• quamvis ... aspera sit = although ... it may be harsh / although ... is harsh

In this sentence, sit is present subjunctive, 3rd person singular, from sum.

This is one of the most common things learners notice in Latin: after certain words like quamvis, Latin often uses the subjunctive where English would not visibly change the verb form.

Here quamvis means although or even though.

It introduces a concessive clause: a clause that admits one fact but then contrasts it with another.

So the structure is:

• Quamvis haec res aspera sit = Although this matter is difficult
• spes tamen manet = hope nevertheless remains

A learner should also know that quamvis can sometimes have other uses in Latin, but in this sentence its job is clearly concessive: although.

Because Latin often likes to mark both sides of a contrast.

• quamvis = although
• tamen = nevertheless / still / yet

So the sentence has a balanced feel:

• Although this matter is difficult,
• nevertheless hope remains.

In English, we do this too sometimes, though not always:

• Although it is difficult, hope still remains.

Latin uses this pairing very naturally.

Because res is the noun, and haec is the demonstrative adjective modifying it.

• haec = this
• res = thing, matter, situation, affair

Together, haec res means this matter, this situation, or this thing.

Latin often uses res in a very broad way, especially when English might prefer matter, situation, or issue.

Because res is a feminine singular noun, and the demonstrative must agree with it.

Forms of hic, haec, hoc:

• hic = masculine singular
• haec = feminine singular
• hoc = neuter singular

Since res is feminine, Latin uses haec.

This is a basic but very important rule: adjectives and demonstratives agree with the noun they describe in gender, number, and case.

For the same reason: it agrees with res.

• res = feminine singular nominative
• aspera = feminine singular nominative

So aspera is describing res: this matter is harsh/difficult/rough

The adjective asper, aspera, asperum can mean:

• rough
• harsh
• severe
• difficult

Here it is being used in a more figurative sense, something like difficult or hard.

Res is nominative singular.

You can tell because it is the subject of sit:

• haec res aspera sit = this matter may be difficult

Also, res is a 5th-declension noun, and its nominative singular form is simply res.

In the second half of the sentence, spes is also nominative singular, because it is the subject of manet.

Manet means remains, stays, or endures.

It is:

• 3rd person singular
• present indicative active
• from maneo, manere

So spes tamen manet means:

• hope nevertheless remains
• hope still remains

The present indicative here states the main idea as a fact.

Spes is nominative because it is the subject of manet.

• spes = hope
• manet = remains

So literally: hope remains.

Spes is a 5th-declension feminine noun, like res. That is a nice detail in this sentence: both res and spes belong to the 5th declension.

Because the two clauses have different grammatical roles.

1. Quamvis haec res aspera sit

   • subordinate concessive clause
   • introduced by quamvis
   • therefore uses the subjunctive

2. spes tamen manet

   • main clause
   • states the central fact
   • therefore uses the indicative

So Latin is not switching moods randomly. The mood change shows the difference between a subordinate concessive clause and the main statement.

Yes. It is very natural Latin word order.

Latin word order is flexible, but this sentence is neatly arranged:

• Quamvis begins the concessive clause.
• haec res keeps the demonstrative and noun together.
• aspera sit places the adjective and verb at the end of that clause.
• spes tamen manet gives the main clause in a compact, emphatic form.

The placement of tamen after spes is also very natural. Latin often places small connective words like tamen near the start of the clause, but not always as the very first word.

Yes, literally aspera often means rough or harsh, but context matters.

With an abstract noun like res, English usually prefers something smoother such as:

• difficult
• hard
• troubling
• serious

So while rough matter would be too literal in normal English, understanding the basic meaning of aspera can help you remember the word.

Yes, it could. Latin does not absolutely require tamen after quamvis.

For example:

• Quamvis haec res aspera sit, spes manet.

That would still mean essentially the same thing.

However, tamen makes the contrast clearer and stronger:

• Although this matter is difficult, hope nevertheless remains.

So tamen is not necessary for grammar, but it is very natural and rhetorically effective.

It has two parts:

1. Quamvis haec res aspera sit

   • concessive subordinate clause
   • quamvis
     • subjunctive
   • haec res = subject
   • aspera = predicate adjective
   • sit = subjunctive verb

2. spes tamen manet

   • main clause
   • spes = subject
   • tamen = adverb, nevertheless
   • manet = main verb

So the whole sentence is a classic pattern:

Although X is true, nevertheless Y remains true.