“Happiness is a garden walled with glass: there's no way in or out. In Paradise there are no stories, because there are no journeys. It's loss and regret and misery and yearning that drive the story forward, along its twisted road.”

Source: Kafka on the Shore

1940s, "Autobiographical Notes" (1949)
Context: It is quite clear to me that the religious paradise of youth, which was thus lost, was a first attempt to free myself from the chains of the "merely-personal," from an existence which is dominated by wishes, hopes and primitive feelings. Out yonder there was this huge world, which exists independently of us human beings and which stands before us like a great, eternal riddle, at least partially accessible to our inspection and thinking. The contemplation of this world beckoned like a liberation, and I soon noticed that many a man whom I had learned to esteem and to admire had found inner freedom and security in devoted occupation with it. The mental grasp of this extrapersonal world within the frame of the given possibilites swam as highest aim half consciously and half unconsciously before my mind's eye. Similarly motivated men of the present and of the past, as well as the insights which they had achieved, were the friends which could not be lost. The road to this paradise was not as comfortable and alluring as the road to the religious paradise; but it has proved itself as trustworthy, and I have never regretted having chosen it.

Source: "Biblical Series III: God and the Hierarchy of Authority" https://www.youtube.com/watch?v=R_GPAl_q2QQ

Variant: I knew my father had done the best he could, and I had no regrets about the way I'd turned out. Regrets about journey, maybe, but not the destination.
Source: Dear John

Source: https://www.youtube.com/watch?v=Ifi5KkXig3s "Biblical Series IV: Adam and Eve: Self-Consciousness, Evil, and Death"

Source: An Ethic for Christians and Other Aliens in a Strange Land (1973), p. 48

Source: The Love Letter

Source: My Life on the Road