Full Idea
Something useful for maintaining the individual over time might be unfavourable to its strength and magnificence; what preserves the individual might simultaneously hold it fast and bring its evolution to a standstill.
Gist of Idea
Survival might undermine an individual's value, or prevent its evolution
Source
Friedrich Nietzsche (Writings from Late Notebooks [1887], 07[25])
Book Reference
Nietzsche,Friedrich: 'Writings from the Late Notebooks', ed/tr. Bittner,Rüdiger [CUP 2003], p.134
A Reaction
He heads this 'Against Darwin', but I think Darwin could accommodate these observations, as he merely points out a mechanism, and makes not value judgements at all.