“It's a Rocket-raising: a festival new to this country. Soon it will come to the folk-attention how close Wernher von Braun's birthday is to the Spring Equinox, and the same German impulse that once rolled flower-boats through the towns and staged mock battles between young Spring and deathwhite old Winter will be erecting strange floral towers out in the clearings and meadows, and the young scientist-surrogate will be going round and round with Gravity or some such buffoon, and the children will be tickled, and laugh….”

Epilogue
The Flower of Old Japan and Other Poems (1907), The Flower of Old Japan

Life-Music, reported in Bartlett's Familiar Quotations, 10th ed. (1919).

Nothing Will Die (1830)
Context: Nothing will die;
All things will change
Thro’ eternity.
‘Tis the world’s winter;
Autumn and summer
Are gone long ago;
Earth is dry to the centre,
But spring, a new comer,
A spring rich and strange,
Shall make the winds blow
Round and round,
Thro’ and thro’,
Here and there,
Till the air
And the ground
Shall be fill’d with life anew.

Song lyrics, Amarantine (2005)

A Spring Storm

"Immutable"

"July"
Context: What comes now? The earth awaits
What fierce wonder from the skies?
Thunder, trampling through the night?
Morning, with illustrious eyes?
Morning, from the springs of light:
Thunder, round Heaven's opening gates..

First chorus, line 65.
Atalanta in Calydon (1865)

Part 1, Ch. 1 (the opening lines of the novel)
The line Yogi Johnson quotes is actually from Percy Bysshe Shelley's Ode to the West Wind. This is one of several misattributed quotes in the novel.
The Torrents of Spring (1926)