“Nothing happens until you decide.”
“Nothing has happened until it happens”
“You don't ever know how happy you are until you remember how sad you once were and vice versa. Nothing is anything until I decide to hold nothing next to something, and declare that I see a difference.”
“Nothing happens until something moves.”
“What? Over? Did you say "over"? Nothing is over until we decide it is! Was it over when the Germans bombed Pearl Harbor? Hell no!”
“Everything is selling. Nothing happens in this world, nothing comes into this world, until somebody makes a sale.”