‘Aristotle was great’. Is this a statement?

I consider a statement to be something either true or false (but not both).

For an individual, this may be considered a statement (because either you think the statement is true or it is false, assuming that an indifferent is counting as thinking he is not great).

However, as a collective, this may not be considered a statement because some people will say its true and some will say its false, going against the definition that a statement cannot be both.

So, is ‘Aristotle is great’ considered a statement?