what forms of psychological manipulation will we consider to be acceptable business models?

--- James Williams, author of Stand out of our Light: Freedom and Resistance in the Attention Economy (CUP 2018), speaking on the Talking Politics podcast 25 April, 2018, at timecode 24:39

The fundamental question for society to answer is, what forms of psychological manipulation will we consider to be acceptable business models.

The natural flights of the human mind are not from pleasure to pleasure, but from hope to hope

--- Samuel Johnson, quoted by Philip Mirowski in the final section, "5. The kicker" of  "On kicking the habit: A response to the JEBO Symposium on “Markets Come to Bits”", Journal of Economic Behavior & Organization, Vol. 63 (2007) 359–371

Here's more, per https://www.brainyquote.com/quotes/samuel_johnson_134958

The mind is never satisfied with the objects immediately before it, but is always breaking away from the present moment, and losing itself in schemes of future felicity... The natural flights of the human mind are not from pleasure to pleasure, but from hope to hope.

I have gathered a posie of other men's flowers and nothing but the thread which binds them is my own

--- Michel de Montaigne, frontispiece of The Art of Botanical Illustration (Hardcover, 1989) by Lys de Bray

I haven't been able to find thesource for this translation.

Here is the version from Essays of Michel de Montaigne, Chapter XII, Of Physiognomy, translated by Charles Cotton, edited by William Carew Hazlitt (1877) on http://www.gutenberg.org/ebooks/3600:

Besides, the method of arguing, of which Socrates here makes use, is it not equally admirable both in simplicity and vehemence?  Truly it is much more easy to speak like Aristotle and to live like Caesar than to speak and live as Socrates did; there lies the extreme degree of perfection and difficulty; art cannot reach it.  Now, our faculties are not so trained up; we do not try, we do not know them; we invest ourselves with those of others, and let our own lie idle; as some one may say of me, that I have here only made a nosegay of foreign flowers, having furnished nothing of my own but the thread to tie them.

Certainly I have so far yielded to public opinion, that those borrowed ornaments accompany me; but I do not mean that they shall cover me and hide me; that is quite contrary to my design, who desire to make a show of nothing but what is my own, and what is my own by nature; and had I taken my own advice, I had at all hazards spoken purely alone, I more and more load myself every day, beyond my purpose and first method, upon the account of idleness and the humour of the age.  If it misbecome me, as I believe it does, ‘tis no matter; it may be of use to some others.

True simplicity is derived from so much more than just the absence of clutter and ornamentation. It's about bringing order to complexity.

--- Jonathan Ive, explaining the design philosophy behind iOS 7 in the product video shown at WWDC 2013 (according to Wikiquote) (h/t Agata Toromanoff for the quote in her article Conscious Environments about Elena Mora, Aesthetica Magazine, June/July 2018)

From Wikiquote:

I think there is a profound and enduring beauty in simplicity; in clarity, in efficiency. True simplicity is derived from so much more than just the absence of clutter and ornamentation. It's about bringing order to complexity.

What you see depends on where you stand

It's a variation, perhaps, of   C.S. Lewis in The Magician's Nephew:

What you see and what you hear depends a great deal on where you are standing. It also depends on what sort of person you are.

Cf. "Where you stand depends on where you sit," attributed to Rufus Miles of Princeton University (sometimes call Miles's Law), among others.

finding the right work is like discovering your own soul in the world

--- Thomas Moore, in Care of the Soul: A Guide for Cultivating Depth and Sacredness in Everyday Life (1994)

Quote in context, p. 186:

When it is not possible to feel good about our work, then soulful pride, so necessary for creativity, turns into narcissism. Pride and narcissism are not the same thing; in a sense, they are opposites. Like Narcissus, we need to be objectified in an image, something outside ourselves. The products of our work are like the image in the pond—a means of loving ourselves. But if those products are not lovable, we are forced into a narcissistic where we lose sight of the work itself and focus on our own personal needs. Love of the world and our place in it, attained largely by our work, turns into solipsistic craving for love. Work becomes narcissistic when we cannot love ourselves through objects in the world. This is one of the deeper implications of the Narcissus myth: the flowering of life depends upon finding a reflection of oneself in the world, and work is an important place for that kind of reflection. In the language of Neoplatonism, Narcissus discovers love when he finds that his nature is completed in that part of his soul that is outside himself, in the soul of the world. Read in this way, the story suggests that we will never achieve the flowering of our own natures until we find that piece of ourselves, that lovable twin, which lives in the world and as the world. Therefore, finding the right work is like discovering your own soul in the world.

Let your meditation walk no further than pleasure, and even a little behind

--- Epicurus, quoted by Thomas Moore in Care of the Soul (1992). From Moore, p. 164:

Also curious is that whenever pleasure is tied to soul in the writings of philosophers, it is not separated from restraint. Epicurus, as we have seen, lived a simple life and taught a philosophy of pleasure. Ficino, who in his early years espoused the philosophy of Epicurus explicitly (later he lived it but did not speak about it openly), gave a high place to pleasure, yet he was a vegetarian, ate sparsely, traveled none and treasured friends and books over all other possessions. The motto of his Florentine academy was displayed on a banner that read PLEASURE IN THE PRESENT. In one of his letters he gave this epicurean advice: "Let your meditation walk no further than pleasure, and even a little behind."