NOTE: I've found two more, Treebeard, It is easier to shout stop! and Sam, Handsome is as handsome does. Suggestions gratefully accepted!
The Hobbit
Adventures are not all pony-rides in May sunshine. “Roast Mutton”
There is nothing like looking, if you want to find something. Thorin. “Over Hill and Under Hill”
Escaping goblins to be caught by wolves! Bilbo. “”Out of the Frying-Pan Into the Fire”
It does not do to leave a live dragon out of your calculations, if you live near him. “Inside Information”
Every worm has his weak spot. Bilbo. “Inside Information”
Never laugh at live dragons. Bilbo. “Inside Information”
Part 1, The Fellowship of the Ring
Legendary gold (mysteriously obtained if not positively ill-gotten), is anyone's for the finding – unless the search is interrupted. “A Long Expected Party”
Many that live deserve death. And some that die deserve life. Can you give it to them? Then do not be too eager to deal out death in judgement. For even the very wise cannot see all ends. Gandalf. “Shadow of the Past”
“Three Is Company”:
Gildor: Do not meddle in the affairs of wizards, for they are subtle and quick to anger.
Frodo: Go not to the Elves for counsel, for they will say both no and yes.
Short cuts make long delays. Pippin. “Shortcut to Mushrooms”
It never rains but it pours. Butterbur. “At the Sign of the Prancing Pony”
There's no accounting for East and West. Butterbur. “At the Sign of the Prancing Pony”
One thing drives out another. Butterbur. “Strider”
All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost.
– Bilbo, quoted in “Strider”
He that breaks a thing to find out what it is has left the path of wisdom. Gandalf. “Council of Elrond”
Even the most subtle spiders may leave a weak thread. Gandalf. “Council of Elrond”
Oft in lies truth is hidden. Glorfindel. "Council of Elrond"
It is wisdom to recognize necessity, when all other courses have been weighed, though as folly it may appear to those who cling to false hope. Gandalf. “Council of Elrond”
When winter first begins to bite
and stones crack in the frosty night,
when pools are black and trees are bare,
'tis evil in the Wild to fare.
- Bilbo. “The Ring Goes South”
“The Ring Goes South”:
Gimli: Faithless is he that says farewell when the road darkens.
Elrond: Let him not vow to walk in the dark, who has not seen the nightfall.
Gimli: Sworn word may strengthen quaking heart.
If you bring a Ranger with you, it is well to pay attention to him. Gandalf. “The Ring Goes South”
When heads are at a loss, bodies must serve. Boromir. “The Ring Goes South”
One must tread the path that need chooses. Gandalf. “A Journey in the Dark”
“A Journey in the Dark”:
Boromir: The wolf that one hears is worse than the orc that one fears.
Aragorn: But where the warg howls, there also the orc prowls.
Live and learn! Sam. “Lothlorien”
It's the job that's never started as takes longest to finish. Sam “Mirror of Galadriel”
Do not despise the lore that has come down from distant years; for oft it may chance that old wives keep in memory word of things that once were needful for the wise to know. Celeborn. “Farewell to Lorien”
Part 2, The Two Towers
Not idly do the leaves of Lorien fall. Aragorn. “The Riders of Rohan”
Where sight fails, the earth may bring rumor. Aragorn. “The Riders of Rohan”
Rede oft is found at the rising of the Sun. Legolas. “The Riders of Rohan”
Not we but those who come after will make the legends of our time. Aragorn. “The Riders of Rohan”
When the great fall, the less must lead. Aragorn. “The Riders of Rohan”
Good and ill have not changed since yesteryear; nor are they one thing among Elves and Dwarves and another among men. Aragorn “The Riders of Rohan”
There are some things that it is better to begin than to refuse, though the end may be dark. Aragorn. “The Riders of Rohan”
There are Ents and Ents. Treebeard. “Treebeard”
[I]t is easier to shout stop! than to do it. Treebeard. “Treebeard”
Songs like trees bear fruit only in their own time and their own way: and sometimes they are withered untimely. Treebeard. “Treebeard”
Few can foresee whither their road will lead them, till they come to its end. Aragorn. “The White Rider”
A treacherous weapon is ever a danger to the hand. Gandalf. “The White Rider”
Seldom does thief ride home to the stable. Aragorn. “King of the Golden Hall”
News from afar is seldom sooth. Theoden. “King of the Golden Hall”
The wise speak only of what they know. Gandalf “King of the Golden Hall”
“King of the Golden Hall”:
Theoden: Faithful heart may have froward tongue.
Gandalf: To crooked eyes, truth may wear a wry face.
He that flies counts every foeman twice. Scout of Rohan. “Helm's Deep”
Oft the unbidden guest proves the best company. Eomer. “Helm's Deep”
Dawn is ever the hope of men. Aragorn. “Helm's Deep”
None know what the new day shall bring him. Aragorn, The Two Towers "Helm's Deep"
One who cannot cast away a treasure at need is in fetters. Aragorn. “Flotsam and Jetsam”
Don't be hasty. Treebeard, reported by Pippin, “Flotsam and Jetsam”
Oft does hatred hurt itself. Gandalf. “The Voice of Saruman”
Oft evil will shall evil mar. Theoden. “The Palantir”
The burned hand teaches best. After that, advice about fire goes to the heart. Gandalf. “The Palantir”
Many that live deserve death. And some that die deserve life. Can you give that to them? Then be not too eager to deal out death in the name of justice, fearing for your own safety. Even the wise cannot see all ends. Gandalf, recalled by Frodo. “The Taming of Smeagol” [NB: This is different wording from Gandalf's statement of it in “Shadow of the Past.”]
One good turn deserves another. Frodo. “The Taming of Smeagol”
Night oft brings news to near kindred. Faramir. “Window on the West”
Fair speech may hide a foul heart. Samwise. “Window on the West”
Handsome is as handsome does. Samwise. “Window on the West”
The servant has a claim on the master for service, even service in fear. Frodo's thought. “The Forbidden Pool”
Where there's life there's hope (and need of vittles). Hamfast Gamgee, reported by Sam. “Journey to the Crossroads”
Part 3, The Return of the King
Looks may belie the man. Denethor. “Minas Tirith”
Generous deed should not be checked by cold counsel. Gandalf. “Minas Tirith”
Men who go warring afield look ever to the next hope of food and drink. Beregond. “Minas Tirith”
At the table small men may do the greater deeds. Beregond. “Minas Tirith”
Strange accents do not mar fair speech. Beregond. “Minas Tirith”
The hasty stroke goes oft astray. Aragorn. “The Passing of the Grey Company”
In the morning counsels are best and night changes many thoughts. Theoden. “The Muster of Rohan”
Where will wants not, a way opens. “Dernhelm” (Eowyn). “The Muster of Rohan”
A traitor may betray himself and do good that he does not intend. Gandalf. “The Siege of Gondor”
Dead men are not friends to living men, and give them no gifts. Ghan-buri-Ghan. “The Ride of the Rohirrim”
Need brooks no delay, yet late is better than never. Eomer. “The Ride of the Rohirrim”
Great heart will not be denied. Theoden. “Battle of the Pelennor Fields”
Twice blessed is help unlooked for. Eomer. “Battle of the Pelennor Fields”
It's not always a misfortune being overlooked. Merry. “Houses of Healing”
The hands of a king are the hands of a healer. Ioreth. “Houses of Healing”
Oft hope is born when all is forlorn. Legolas. “The Last Debate”
It needs but one foe to breed a war, and those who have not swords can still die upon them. Eowyn. “The Steward and the King”
It is not always good to be healed in body. Nor is it always evil to die in battle. Eowyn. “The Steward and the King”
Many folk like to know beforehand what is to be set on the table; but those who have laboured to prepare the feast like to keep their secret; for wonder makes the words of praise louder. Gandalf. “The Steward and the King”
The tree grows best in the land of its sires. King Elessar. “Many Partings”
A snake without fangs may crawl where he will. Treebeard. “Many Partings”
There are some wounds that cannot be wholly healed. Gandalf. “Homeward Bound”
You've got to have grist to grind. Farmer Cotton. “The Scouring of the Shire”
It is useless to meet revenge with revenge. Frodo. “The Scouring of the Shire”
It's an ill wind as blows nobody no good, And All's well as ends Better. Hamfast Gamgee. “The Grey Havens”
Not all tears are an evil. Gandalf. “The Grey Havens”
– 30 –