See Also - NewEpicurean.com Nietzsche On Stoicism's Fraud of Words

Genealogy Of Morals, Part III, Section 15

"Suffering people all have a horrible willingness and capacity for inventing pretexts for painful emotional feelings. They already enjoy their suspicions, their brooding over bad actions and apparent damage. They ransack the entrails of their past and present, looking for dark and dubious stories, in which they are free to feast on an agonizing suspicion and to get intoxicated on their own poisonous anger. They rip open the oldest wounds, they bleed themselves to death from long-healed scars. They turn friends, wives, children, and anyone else who is closest to them into criminals. "I am suffering. Someone or other must be to blame for that" - that how every sick sheep thinks. But his shepherd, the ascetic priest, says to him: "That's right, my sheep ! Someone must be to blame for that. But you yourself are this very person. You yourself are the only one to blame. You alone are to blame for yourself!" . . . That is clever enough, and false enough. But one thing at least is attained by that, as I have said, the direction of resentment has been changed."

Beyond Good And Evil, (Gutenberg edition, translated by Helen Zimmern) Chapter 1, section 9
You desire to LIVE “according to Nature”? Oh, you noble Stoics, what fraud of words! Imagine to yourselves a being like Nature, boundlessly extravagant, boundlessly indifferent, without purpose or consideration, without pity or justice, at once fruitful and barren and uncertain: imagine to yourselves INDIFFERENCE as a power—how COULD you live in accordance with such indifference? To live—is not that just endeavouring to be otherwise than this Nature? Is not living valuing, preferring, being unjust, being limited, endeavouring to be different? And granted that your imperative, “living according to Nature,” means actually the same as “living according to life”—how could you do DIFFERENTLY? Why should you make a principle out of what you yourselves are, and must be? In reality, however, it is quite otherwise with you: while you pretend to read with rapture the canon of your law in Nature, you want something quite the contrary, you extraordinary stage-players and self-deluders! In your pride you wish to dictate your morals and ideals to Nature, to Nature herself, and to incorporate them therein; you insist that it shall be Nature “according to the Stoa,” and would like everything to be made after your own image, as a vast, eternal glorification and generalism of Stoicism! With all your love for truth, you have forced yourselves so long, so persistently, and with such hypnotic rigidity to see Nature FALSELY, that is to say, Stoically, that you are no longer able to see it otherwise—and to crown all, some unfathomable superciliousness gives you the Bedlamite hope that BECAUSE you are able to tyrannize over yourselves—Stoicism is self-tyranny—Nature will also allow herself to be tyrannized over: is not the Stoic a PART of Nature?… But this is an old and everlasting story: what happened in old times with the Stoics still happens today, as soon as ever a philosophy begins to believe in itself. It always creates the world in its own image; it cannot do otherwise; philosophy is this tyrannical impulse itself, the most spiritual Will to Power, the will to “creation of the world,” the will to the causa prima.

Beyond Good And Evil, (Gutenberg edition, translated by Helen Zimmern) Chapter 5, section 188
188. In contrast to laisser-aller, every system of morals is a sort of tyranny against “nature” and also against “reason”, that is, however, no objection, unless one should again decree by some system of morals, that all kinds of tyranny and unreasonableness are unlawful What is essential and invaluable in every system of morals, is that it is a long constraint. In order to understand Stoicism, or Port Royal, or Puritanism, one should remember the constraint under which every language has attained to strength and freedom—the metrical constraint, the tyranny of rhyme and rhythm.

Beyond Good And Evil, (Gutenberg edition, translated by Helen Zimmern) Chapter 5, section 198
198. All the systems of morals which address themselves with a view to their “happiness,” as it is called—what else are they but suggestions for behaviour adapted to the degree of DANGER from themselves in which the individuals live; recipes for their passions, their good and bad propensities, insofar as such have the Will to Power and would like to play the master; small and great expediencies and elaborations, permeated with the musty odour of old family medicines and old-wife wisdom; all of them grotesque and absurd in their form—because they address themselves to “all,” because they generalize where generalization is not authorized; all of them speaking unconditionally, and taking themselves unconditionally; all of them flavoured not merely with one grain of salt, but rather endurable only, and sometimes even seductive, when they are over-spiced and begin to smell dangerously, especially of “the other world.” That is all of little value when estimated intellectually, and is far from being “science,” much less “wisdom”; but, repeated once more, and three times repeated, it is expediency, expediency, expediency, mixed with stupidity, stupidity, stupidity—whether it be the indifference and statuesque coldness towards the heated folly of the emotions, which the Stoics advised and fostered; or the no-more-laughing and no-more-weeping of Spinoza, the destruction of the emotions by their analysis and vivisection, which he recommended so naively; or the lowering of the emotions to an innocent mean at which they may be satisfied, the Aristotelianism of morals; or even morality as the enjoyment of the emotions in a voluntary attenuation and spiritualization by the symbolism of art, perhaps as music, or as love of God, and of mankind for God’s sake—for in religion the passions are once more enfranchised, provided that…; or, finally, even the complaisant and wanton surrender to the emotions, as has been taught by Hafis and Goethe, the bold letting-go of the reins, the spiritual and corporeal licentia morum in the exceptional cases of wise old codgers and drunkards, with whom it “no longer has much danger.”—This also for the chapter: “Morals as Timidity.”

Additional Cites From The Collection At The Epicurus Wiki
The following are not explicit references to Epicurus, but highly consistent with the Epicurean perspective:

Thus Spake Zarathustra, Walter Kaufman translation
“I beseech you, my brothers, remain faithful to the earth, and do not believe those who speak to you of otherworldly hopes! Poison-mixers are they, whether they know it or not. Despisers of life are they, decaying and poisoned themselves, of whom the earth is weary: so let them go. Once the sin against God was the greatest sin; but God died, and these sinners died with him. To sin against the earth is now the most dreadful thing, and to esteem the entrails of the unknowable higher than the meaning of the earth…”