“Your mind is just like parachute ! if you don't open it, it won't work !”
“Your mind is just like a parachute ! if you don't open it, it won't work !”
“Minds are like parachutes, they don't work unless you open them.”
“Your mind is like a parachute; it only works when it is open.”
“Your mind is like a parachute, it doesn't work unless it's open.”
“A mind is like a parachute. It doesn't work if it is not open.”