Some Parallels

"Delta v" is a concept relevant to subliminal space travel but it crops up several times in Poul Anderson's "Inconstant Star" and I now have a layman's understanding of its meaning. See Comments here.

Poul Anderson describes "...popping in and out of hyperspace..." as "...transition between relativistic and quantum modes..." (Man-Kzin Wars III, p. 265) but this makes Known Space hyperspace sound like Technic History hyperspace. The latter is original: not another space but a succession of instantaneous quantum jumps within relativistic space.

In Anderson's Technic History, a Merseian says that "'...the highest end...'" is:

"'...absolute freedom for our race, to make of the galaxy what they will.'" (Young Flandry, p. 27)

- and tells his latest grandcub:

"'You shall have stars for toys...'" (p. 28)

One of Larry Niven's kzinti, written by Anderson, bares fangs at the stars and tells them:

"...we shall do with you what we will." (Man-Kzin Wars III, p. 261)

Merseians and kzinti are comparable to SM Stirling's Draka who say, "Glory to the Race!" but do not mean by this the entire human race and in fact succeed in making themselves a distinct species.

How The Ice Folk Wage War

Juchi the Shaman says of the native Altaian Dwellers/Ice Folk:

"'...they have...grown weak in sheerly material ways. They help us withstand the aggressions from Ulan Baligh; they can do nothing against the might of Merseia.'"
-Poul Anderson, Captain Flandry: Defender Of The Terran Empire (New York, 2010), p. 377.

The Ice Folk can do a lot against the human enemies of Juchi's tribe. They somehow detected and destroyed hostile aircraft at a distance. When Flandry defaced the Prophet's Tower, he was carried by an aeromedusa controlled by a Dweller who had to cling to a block of ice in order to survive this flight to the tropics.

When the enemy attacks on motor bikes, a Dweller calls through the roots to alert the forest. Hundreds of aeromedusae descend either to electrocute soldiers or to lift them and drop them into a lethally cold lake. Medusae hit by gunfire burst into hydrogen flame and seek men to burn. The retreat becomes a rout.

Making Love, Not War
Bourtai, a nomad woman, wants to be with Flandry but does not know how to initiate a sexual liaison so she just puts herself in his presence until he gets the message but then they are interrupted and Flandry will leave anyway. But he leaves her in the capable hands of his rival.

For background on Altai, see here.