“Her very difficulty created friction, and friction led to satisfaction...”
“She worked her toes into the sand, feeling the tiny delicious pain of the friction of tiny chips of silicon against the tender flesh between her toes. That's life. It hurts, it's dirty, and it feels very, very good.”
“Some slight friction threatening in the Balkans, sir.”
“Something reduces the speed of the world and that something is stupidity! Stupidity is a boring friction!”
“The gem cannot be polished without friction, nor man perfected without trials.”
“I would not waste my life in friction when it could be turned into momentum.”