“A true symbol appears only when there is a need to express what thought cannot think or what is only divined or felt.”

Source: Discourses (1967), Vol. I, Ch. 15 : The Life of the Spirit.
Context: When once true adjustment between spirit and matter is secured there is no phase of life which cannot be utilised for the expression of divinity. No longer is there any need to run away from everyday life and its tangles. The freedom of the spirit, which is sought by avoiding contact with the world and by going to the caves or mountains, is a negative freedom. When such retirement is temporary and is meant to digest worldly experiences and develop detachment it has its own advantages. It gives breathing time in the race of life. But when such retirement is grounded in fear of the world or lack of confidence in the spirit, it is far from helpful towards the attainment of real freedom. Real freedom is essentially positive and must express itself through unhampered dominion of the spirit over matter. This is the true life of the spirit.

Preface
1920s, Tractatus Logico-Philosophicus (1922)

Source: 1840s, Two Ethical-Religious Minor Essays (1849), P. 99

Source: Poems of Fernando Pessoa

Essays, On Authorship and Style
Context: The law of simplicity and naïveté applies to all fine art, for it is compatible with what is most sublime.
True brevity of expression consists in a man only saying what is worth saying, while avoiding all diffuse explanations of things which every one can think out for himself; that is, it consists in his correctly distinguishing between what is necessary and what is superfluous. On the other hand, one should never sacrifice clearness, to say nothing of grammar, for the sake of being brief. To impoverish the expression of a thought, or to obscure or spoil the meaning of a period for the sake of using fewer words shows a lamentable want of judgment.

Quote, 1970's; from the documentary 'Gerhard Richter - Painting', Corrinna Belz, 2011
1970's

The Four Loves (1960)
Context: Friendship arises out of mere companionship when two or more of the companions discover that they have in common some insight or interest or even taste which the others do not share and which, till that moment, each believed to be his own unique treasure (or burden). The typical expression of opening Friendship would be something like, "What? You too? I thought I was the only one."

Pyrrho, 11.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 9: Uncategorized philosophers and Skeptics

Frankfurt Book Fair speech (2003)
Context: Literature is dialogue; responsiveness. Literature might be described as the history of human responsiveness to what is alive and what is moribund as cultures evolve and interact with one another.
Writers can do something to combat these clichés of our separateness, our difference — for writers are makers, not just transmitters, of myths. Literature offers not only myths but counter-myths, just as life offers counter-experiences — experiences that confound what you thought you thought, or felt, or believed.