Full Idea
The basic tendency of the weak and mediocre of all ages is to weaken and pull down the stronger: chief means, the moral judgement.
Gist of Idea
The basic tendency of the weak has always been to pull down the strong, using morality
Source
Friedrich Nietzsche (The Will to Power (notebooks) [1888], §345)
Book Reference
Nietzsche,Friedrich: 'The Will to Power', ed/tr. Kaufmann,W /Hollingdate,R [Vintage 1968], p.189
A Reaction
Obviously this contains some truth. Morality is a vast trade union movement by means of which the weak seek power and security. And good luck to them, I say. Why is mass power any worse than aristocratic or oligarchic power?