“In each of us there dwells a mystery, and that mystery is the human personality.”

Interview, The Paris Review No. 80, Spring 2000 http://www.theparisreview.org/interviews/730/the-art-of-poetry-no-80-geoffrey-hill

Friends, Lovers, Chocolate, chapter 15.
The Sunday Philosophy Club series

Emperor Has No Clothes Award acceptance speech (2003)
Context: The purpose of science in understanding who we are as humans is not to rob us of our sense of mystery, not to cure us of our sense of mystery. The purpose of science is to constantly reinvent and reinvigorate that mystery. To always use it in a context where we are helping people in trying to resist the forces of ideology that we are all familiar with.

26
Fireflies (1928)

The Sense of Wonder (1965)
Context: Those who dwell, as scientists or laymen, among the beauties and mysteries of the earth are never alone or weary of life. Whatever the vexations or concerns of their personal lives, their thoughts can find paths that lead to inner contentment and to renewed excitement in living. Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts.

On Being a Real Person (1943)
Context: Every human life involves an unfathomable mystery, for man is the riddle of the universe, and the riddle of man is his endowment with personal capacities. The stars are not so strange as the mind that studies them, analyzes their light, and measures their distances.

“Poetry Black, Poetry White,” no. 19-20, Fontaine (Paris, March/April 1942)

Source: Attributed, Dictionary of Burning Words of Brilliant Writers (1895), P. 262.