Here are the contexts of a number of quotations. All but the last are from The Two Towers by J. R. R. Tolkien.
“It is more treacherous than you are. It may twist your words.” Frodo to Gollum, when Gollum offers to swear on “the precious” (the Ring.)
“Perhaps you can’t even try, not yet anyway.” Frodo has offered Gollum a share of the elven-bread, but Gollum cannot eat it.
“I do not think we need give thought to what comes after that.” Frodo’s first open admission to Sam that they are unlikely to survive the mission to destroy the Ring
“They know that they can only come to morning through the shadow.” And the shadow seems very dark to Frodo and Sam as they catch their first glimpse of the lands before the Gate of Mordor.
“There is another way. Darker, more difficult to find, more secret.” Gollum, offering to show Frodo and Sam a “back door” to Mordor.
“He’s as wise as any, but he’s soft-hearted.” Sam’s opinion of Frodo, as they follow Gollum to Cirith Ungol.
“She had forgotten a lot about planets, Marna decided less than a day after returning to Riya.” Homecoming, Bowling. Marna has spent her last two centuries on an isolation satellite, and is not at all used to being rained on (literally) or in fact any kind of weather.