“The language of poetry is the only speech which has in it the power of permanent impression”

Source: Time in History: Views of Time from Prehistory to the Present Day (1988), p.22

Introduction, sect. 2
La poétique de la rêverie (The Poetics of Reverie) (1960)

12
Essays, Can Poetry Matter? (1991), Poetry as Enchantment (2015)

2000s
Variant: The world has always been more impressed by the power of our [America's] example than by the example of our power.
Context: Former U. S. president Bill Clinton has urged newspaper editors to focus more attention on the depletion of the world's oil reserves. In a June 17 speech to the Association of Alternative Newsweeklies convention in Little Rock, Arkansas, Clinton said a "significant number of petroleum geologists" have warned that the world could be nearing the peak in oil production. Clinton suggested that at current consumption rates (now more than 30 billion barrels per year, according to the International Energy Agency), the world could be out of "recoverable oil" in 35 to 50 years, elevating the risk of "And then finally, and I think most important of all, more important than the deficit, more important then healthcare, more important than anything, is we have got to do something about our energy strategy because if we permit the climate to continue to warm at an unsustainable rate, and if we keep on doing what we're doing 'til we're out of oil and we haven't made the transition, then it's inconceivable to me that our children and grandchildren will be able to maintain the American way of life and that the world won't be much fuller of resource-based wars of all kinds.”

quoted in McLuhan: A Guide for the Perplexed by W. Terrence Gordon, 2010, p. 167
1980s

Source: Why Be Happy When You Could Be Normal?

Source: 1980s, Literary Theory: An Introduction (1983), Chapter 5, p. 138

Pt. I, sec. 6, "The Effect of Poetry Explained"
The Philosophy of Style (1852)

Source: Longing for the Harmonies: Themes and Variations from Modern Physics (1987), Ch.7 New Star