* GeniusBonus ''Galactic Patrol'' includes a very amusing technobabble explanation for the unlikely properties of one of Smith's favorite inventions, Duodecpylatimate, AKA Duodec, the ultimate chemical explosive. You have to understand scientific notation to figure out the joke. Smith was reportedly delighted to be called out on this "mistake".
* MagnificentBastard - Mentor of Arisia is the king, but honorable mention goes to Nadreck the Palainian, exemplified when he single-handedly defeated a massively defended enemy fortress by secretly manipulating the inhabitants into a civil war that killed them all. He's so embarrassed that his planning and execution wasn't perfect,forcing him to deal with the last three survivors personally, that he only reveals the extent of this "failure" when ordered to do so, and refuses to discuss it further.
** It's implied that Nadreck's entire ''species'' is [[PlanetOfHats like this]], except that Nadreck is the most capable of them (and one of the few willing to stick his neck out to perform tasks for the general good- a little). Palainians are among the stranger aliens in the history of science fiction, both physically and mentally, especially if you look at its early days when HumanAliens were the norm.
** Come on - what about Helmuth? He at least realised what he was up against and tried to take precautions; had Kinnison not already learned his lesson from an ''incredibly'' close brush with death that he was lucky to survive, he'd have been toast.
*** It is a measure of Kinnison's respect for the man that even two novels later, he would look at a sloppy Boskonian defensive emplacement and go 'You know, ''Helmuth'' wouldn't have screwed this one up.'
* SerialNumbersFiledOff: The shareware game ''[[http://www.jalada.eu/cms/index.php?option=com_content&task=view&id=179&Itemid=258 Children of Arisia]]'' takes place on the planet Medon, where the player, a third-level intellect, must fight against the forces of Boskone and the Overlords of Delgon who are attaching humanity via a hyper-spacial tube...
* SomeAnvilsNeedToBeDropped: The ''Lensman'' books are quite free of political preaching by the standards of modern sci-fi, but one thing that ''is'' made clear is that the author [[DrugsAreBad doesn't like habit-forming drugs]]. EldritchAbominations may be the [[BigBad Big Bads]] of the plot, but the real monsters are the drug dealers, who suffer unconditional death penalty when captured. In one prequel book, there's also a mild AuthorTract on the evils of drugs, including a couple of lines that are well summed up, though with some loss of nuance, [[EvenEvilHasStandards "Even the]] [[DirtyCommies Soviet Union]] [[EvenEvilHasStandards helped fight the international drug dealers.]] ''[[AnAesop That's]]'' [[AnAesop how bad drugs are."]]
** Also, it's taken for granted that libertarianism is the right form of government. At one point, government is loftily mentioned as having been "reduced to its proper sphere and concentrated in the Patrol."
* ValuesDissonance - When the series started, eugenics hadn't been [[GodwinsLaw discredited by association with the Nazis yet]], so aliens "encouraging" Earth's best and brightest to [[GeniusBreedingAct make babies with each other]] was seen as the proper thing for SufficientlyAdvancedAliens to do.
** On another note, pacifistically inclined modern readers may be uncomfortable with the Galactic Patrol's willingness to use [[EarthShatteringKaboom overwhelming force]] against Boskone's fortified planets, or feel that they do so without due regard for [[HumanShield collateral damage]]. Whereas the books were written during and immediately after WorldWarII, when [[KnightInSourArmor the Allies]] were indiscriminately pouring megatons of explosives over German and Japanese cities and few people found anything questionable in this.
** The idea that a human woman could be a ruthless, cold-blooded murderer is seen as appalling and impossible in ''First Lensman''. This is why women Lensmen aren't admitted, except for one who Virginia Samms hypothesizes would have to be some kind of monster; [[ARealManIsAKiller a real Lensman must be a killer]]. [[spoiler: Actually, this one is shown to be incorrect. Clarissa isn't any more ruthless than Virginia; it's implied that the real reason behind the ban is that women Lensmen would screw up the Arisians' breeding programs.]] Today, the idea that women ''can't'' be natural-born killers would be laughed at.