Full Idea
As long as philosophers do not muster the courage to advocate a lifestyle structured in an entirely different way and demonstrate it by their own example, they will come to nothing.
Gist of Idea
Philosophy is pointless if it does not advocate, and live, a new way of life
Source
Friedrich Nietzsche (Unpublished Notebooks 1872-74 [1873], 31 [10])
Book Reference
Nietzsche,Friedrich: 'Unpublished of 'Unfashionable Obs' period (v 11)', ed/tr. Gray,Richard T. [Stanford 1995], p.311
A Reaction
This is a pretty tough requirement for the leading logicians and metaphysicians of our day, but they must face their marginality. The public will only be interested in philosophers who advocate new ways of living.