Full Idea
For a philosopher to see a problem in the value of life thus even constitutes an objection to him, a question-mark as to his wisdom, a piece of unwisdom.
Gist of Idea
A philosopher fails in wisdom if he thinks the value of life is a problem
Source
Friedrich Nietzsche (Twilight of the Idols [1889], 1.02)
Book Reference
Nietzsche,Friedrich: 'Twilight of the Idols and The Anti-Christ', ed/tr. Hollingdale,R.J. [Penguin 1972], p.30
A Reaction
I take his point to be neither that life is unquestionably valuable nor that it is valueless, but that the very question is ridiculous. If we live, we value living. Sounds right.