“To wisdom belongs the intellectual apprehension of things eternal; to knowledge, the rational apprehension of things temporal.”

Source: The Story of My Life (1903), Ch. 21

"On the Origin of Beauty: A Platonic Dialogue"
Letters, etc

[The Web of Indian Life, Ch. X: The Oriental Experience, http://www.sacred-texts.com/hin/wil/wil12.htm, 20 June 2012, Sister Nivedita]
The Web of Indian Life (1904)

Stephen Hero (1944)
Context: Imagine my glimpses at that clock as the gropings of a spiritual eye which seeks to adjust its vision to an exact focus. The moment the focus is reached the object is epiphanised. It is just in this epiphany that I find the third, the supreme quality of beauty. … No esthetic theory, pursued Stephen relentlessly, is of any value which investigates with the aid of the lantern of tradition. What we symbolise in black the Chinaman may symbolise in yellow: each has his own tradition. Greek beauty laughs at Coptic beauty and the American Indian derides them both. It is almost impossible to reconcile all tradition whereas it is by no means impossible to find the justification of every form of beauty which has ever been adored on the earth by an examination into the mechanism of esthetic apprehension whether it be dressed in red, white, yellow or black. We have no reason for thinking that the Chinaman has a different system of digestion from that which we have though our diets are quite dissimilar. The apprehensive faculty must be scrutinised in action.

Variant: We look not at the things which are what you would call seen, but at the things which are not seen. For the things which are seen are temporal. But the things which are not seen are eternal.
Source: A Wrinkle in Time

Antonio's Revenge, Prologue, line 17. (1600)

Works, VII, 17.
Context: The great thing however is, in the show of the temporal and the transient to recognize the substance which is immanent and the eternal which is present. For the work of Reason (which is synonymous with the Idea) when considered in its own actuality, is to simultaneously enter external existence and emerge with an infinite wealth of forms, phenomena and phases — a multiplicity that envelops its essential rational kernel with a motley outer rind with which our ordinary consciousness is earliest at home. It is this rind that the Concept must penetrate before Reason can find its own inward pulse and feel it still beating even in the outward phases. But this infinite variety of circumstances which is formed in this element of externality by the light of the rational essence shining in it — all this infinite material, with its regulatory laws — is not the object of philosophy.... To comprehend what is, is the task of philosophy: and what is is Reason.