“There is no regular path which leads from these intuitions into the land of ghostly schemata, the land of abstractions. There exists no word for these intuitions; when man sees them he grows dumb, or else he speaks only in forbidden metaphors and in unheard — of combinations of concepts.”

On Truth and Lie in an Extra-Moral Sense (1873)
Context: There are ages in which the rational man and the intuitive man stand side by side, the one in fear of intuition, the other with scorn for abstraction. The latter is just as irrational as the former is inartistic. They both desire to rule over life: the former, by knowing how to meet his principle needs by means of foresight, prudence, and regularity; the latter, by disregarding these needs and, as an "overjoyed hero," counting as real only that life which has been disguised as illusion and beauty.

To an Afflicted Protestant Lady.
Bartlett's Familiar Quotations, 10th ed. (1919)

On Truth and Lie in an Extra-Moral Sense (1873)
Context: The venerability, reliability, and utility of truth is something which a person demonstrates for himself from the contrast with the liar, whom no one trusts and everyone excludes. As a "rational" being, he now places his behavior under the control of abstractions. He will no longer tolerate being carried away by sudden impressions, by intuitions.

Source: Attributed in posthumous publications, Einstein and the Poet (1983), p. 103

Matthew IV: 1–11, p. 26
Expository Thoughts on the Gospels: St. Matthew (1856)

"The Great Good Man" (1802).
Context: How seldom, friend! a good great man inherits
Honor or wealth, with all his worth and pains!
It sounds like stories from the land of spirits
If any man obtain that which he merits,
Or any merit that which he obtains.
.........
Greatness and goodness are not means, but ends!
Hath he not always treasures, always friends,
The good great man? Three treasures,—love and light,
And calm thoughts, regular as infants' breath;
And three firm friends, more sure than day and night,—
Himself, his Maker, and the angel Death.

Variant, from Preface to Max Planck's Where is Science Going? (1933): The supreme task of the physicist is the discovery of the most general elementary laws from which the world-picture can be deduced logically. But there is no logical way to the discovery of these elemental laws. There is only the way of intuition, which is helped by a feeling for the order lying behind the appearance, and this Einfühlung [literally, empathy or 'feeling one's way in']' is developed by experience.
1910s, Principles of Research (1918)
Context: The supreme task of the physicist is to arrive at those universal elementary laws from which the cosmos can be built up by pure deduction. There is no logical path to these laws; only intuition, resting on sympathetic understanding of experience, can reach them. In this methodological uncertainty, one might suppose that there were any number of possible systems of theoretical physics all equally well justified; and this opinion is no doubt correct, theoretically. But the development of physics has shown that at any given moment, out of all conceivable constructions, a single one has always proved itself decidedly superior to all the rest.