Hi guys, my answer is simple...
I'll get a new tattoo and it's this sentence:

"fall down seven times stand up eight"

The world "down" is necessary or it is a bit unecessary if we look at the meaning of the phrase?
The sentence is grammatically correct with or without "down"?

Thank you!

It's Japanese, so you go for it girl.

Yes, it's not necessary. It makes grammatical sense with or without. I personally think it would read better like:

"fall seven times, stand up eight"

slay

'Down' is not necessary but it strengthens the meaning.

'Fall down seven times' looks and sounds better than 'fall seven times', IMO, but it's not my tattoo.

you don't need the word down

"fall seven times, stand up eight" sounds better, it's short and simple

It's not necessary but I think it sounds better with 'Down' included.

It makes sense with or without the 'down' but I think it sounds better without. It's a pretty basic word and already kind of implied by the 'fall'.

But why 7 and 8?

Do you really fall that much?

This. It's not necessary on the sentence.

It's a Japanese saying

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Thank you guys for answering

I like Bayonsay reply tbh