“Morality must be the heart of our existence, if it is to be what it wants to be for us. ... The highest form of philosophy is ethics. Thus all philosophy begins with “I am.””

Beast and Man: The Roots of Human Nature (1979).
Context: Do we find ourselves a species naturally free from conflict? We do not. There has not, apparently, been in our evolution a kind of rationalization which might seem a possible solution to problems of conflict--namely, a takeover by some major motive, such as the desire for future pleasure, which would automatically rule out all competing desires. Instead, what has developed is our intelligence. And this in some ways makes matters worse, since it shows us many desirable things that we would not otherwise have thought of, as well as the quite sufficient number we knew about for a start. In compensation, however, it does help us to arbitrate. Rules and principles, standards and ideals emerge as part of a priority system by which we guide ourselves through the jungle. They never make the job easy--desires that we put low on our priority system do not merely vanish--but they make it possible. And it is in working out these concepts more fully, in trying to extend their usefulness, that moral philosophy begins. Were there no conflict, it [moral philosophy] could never have arisen.

Section 4 : Sceptical Doubts Concerning The Operations of The Understanding
An Enquiry Concerning Human Understanding (1748)

Letter to Can Grande (Epistle XIII, 40), as translated by Charles Latham in A Translation of Dante's Eleven Letters (1891), Letter XI, §16, p. 199.
Epistolae (Letters)

Dune Genesis (1980)
Context: No matter how finely you subdivide time and space, each tiny division contains infinity.
But this could imply that you can cut across linear time, open it like a ripe fruit, and see consequential connections. You could be prescient, predict accurately. Predestination and paradox once more.
The flaw must lie in our methods of description, in languages, in social networks of meaning, in moral structures, and in philosophies and religions — all of which convey implicit limits where no limits exist. Paul Muad'Dib, after all, says this time after time throughout Dune.

Vol. V, par. 265
Collected Papers (1931-1958)

John Maynard Keynes: 1883-1946: Economist, Philosopher, Statesman (2003), Introduction

Source: Philosophy in the Tragic Age of the Greeks (posthumous), p. 27

Vague Thoughts On Art (1911)
Context: I cannot help thinking that historians, looking back from the far future, will record this age as the Third Renaissance. We who are lost in it, working or looking on, can neither tell what we are doing, nor where standing; but we cannot help observing, that, just as in the Greek Renaissance, worn-out Pagan orthodoxy was penetrated by new philosophy; just as in the Italian Renaissance, Pagan philosophy, reasserting itself, fertilised again an already too inbred Christian creed; so now Orthodoxy fertilised by Science is producing a fresh and fuller conception of life — a love of Perfection, not for hope of reward, not for fear of punishment, but for Perfection's sake. Slowly, under our feet, beneath our consciousness, is forming that new philosophy, and it is in times of new philosophies that Art, itself in essence always a discovery, must flourish. Those whose sacred suns and moons are ever in the past, tell us that our Art is going to the dogs; and it is, indeed, true that we are in confusion! The waters are broken, and every nerve and sinew of the artist is strained to discover his own safety. It is an age of stir and change, a season of new wine and old bottles. Yet, assuredly, in spite of breakages and waste, a wine worth the drinking is all the time being made.

Ch 1
Parerga and Paralipomena (1851), Counsels and Maxims
Source: Counsels and Maxims http://ebooks.adelaide.edu.au/s/schopenhauer/arthur/counsels/chapter1.html 2017-12-01 https://web.archive.org/web/20171201131253/http://ebooks.adelaide.edu.au/s/schopenhauer/arthur/counsels/chapter1.html,