“But does not critique, understood as critique of knowledge itself, express new forces capable of giving thought another sense? A thought that would lead life to the limit of what it can do? A thought that would affirm life instead of a knowledge that is opposed to life. Life would be the active force of thought, but thought would be the affirmative power of life. Both would go in the same direction, carrying each other along, smashing restrictions, matching each other step for step, in a burst of unparalleled creativity. Thinking would then mean discovering, inventing, new possibilities of life. “There are lives with prodigious difficulties; these are the lives of the thinkers. And we must lend an ear to what we are told about them, for here we discover possibilities of life the mere story of which gives us joy and strength and sheds light on the lives of their successors. There is as much invention, reflection, boldness, despair and hope here as in the voyages of the great navigators; and to tell the truth, these are also the voyages of exploration in the most distant and perilous domains of life. What is surprising in these lives is that two opposed instincts, which pull in opposite directions, seem to be forced to walk under the same yoke: the instinct that leads to knowledge is constantly constrained to abandon the ground where man habitually lives and to throw itself into the uncertain, and the instinct that wills life is forced to grope ceaselessly in the dark for a new place to establish itself” (Nietzsche PTG). In other words, life goes beyond the limits that knowledge fixes for it. Thought ceases to be a ratio, life ceases to be a reaction. The thinker thus expresses the noble affinity of thought and life: life making thought active, thought making life affirmative. In Nietzsche this general affinity is not only the pre-Socratic secret par excellence, but also the essence of art.”
(Gilles Deleuze, Nietzsche & Philosophy – excerpt taken from page 101, a chapter on Critique)
source:
Deleuze, Gilles. Nietzsche & Philosophy. Trans. Hugh Tomlinson. New York: Columbia UP, 2006. Print.
Cy Twombly
view from a burrow 
Excellent excerpt… :the instinct that leads to knowledge is constantly constrained to abandon the ground where man habitually lives and to throw itself into the uncertain, and the instinct that wills life is forced to grope ceaselessly in the dark for a new place to establish itself…. Thought provoking and accurate.
Best regards! Aquileana 😀