Full Idea
'Things' do not behave regularly, not according to a rule: things are our fiction, and nor do they behave under the compulsion of necessity. That something is as it is, as strong or as weak, is not the consequence of obeying or rules or compulsion.
Gist of Idea
Things are strong or weak, and do not behave regularly or according to rules or compulsions
Source
Friedrich Nietzsche (Writings from Late Notebooks [1887], 14[79])
Book Reference
Nietzsche,Friedrich: 'Writings from the Late Notebooks', ed/tr. Bittner,Rüdiger [CUP 2003], p.245
A Reaction
I'm not sure about the denial of 'things', given that they are then said to be strong or weak, but Nietzsche seems to have had the key insight of modern essentialism, that the so-called 'laws' are merely the outcome of the inner natures of things.