One of my favourite books as a child was Laurie Lee Cider with Rosie. It is autobiographical, about his participation in WW2, but he looks after his increasingly senile mother. The line I (vaguely) recall as my favourite is...
She saw shades, spoke to visions, and then she died.
We buried her under the oak tree next to my father
Its just so eloquent and beautiful, and paints a thousand images in a few words. Another of my favourite lines comes from A Passage To India when Forster is describing the unfamiliar landscape, particularly the mountains...
The earth lies flat, heaves a little, then is flat again
You can just picture them! But my all time favourite is Samuel Beckett -Waiting For Godot. Its so full of time frittered away doing the routine and mundane, yet its so full of humour, almost slapstick at times, and Im sorry not to be able to narrow it down to one example as there are so many.
I dont mean to sound bleak, but there you are. A few of my favourite pieces of literature.