Learn French: Un homme minimaliste n'achète que des choses simples. - A minimalist man only buys simple things.

The structure ne... que is a restrictive negation that means "only" or "nothing but". The ne (which shortens to n' before a vowel) goes before the conjugated verb, and que goes directly before the thing being restricted. By framing the verb achète, it means he buys nothing but simple things.

Why is it des choses instead of de choses? Usually, negative sentences use de.

Great catch! While true negatives like ne... pas change indefinite articles (un, une, des) to de, the ne... que structure is an exception because it isn't a true negative—it's a restriction. Since it doesn't actually negate the action of buying, the article remains des.

Could I use seulement to say "only" in this sentence instead?

Yes, you could absolutely say Un homme minimaliste achète seulement des choses simples. Both ne... que and seulement are very common ways to say "only" in French. The ne... que structure is just a slightly more elegant way to phrase it.

Why do the adjectives minimaliste and simples come after the nouns they describe?