The heaviest burden you carry is the thoughts in your head. Source: Internet
You have brains in your head. You have feet in your shoes. You can steer yourself any direction you choose. You're on your own. And you know what you know. And YOU are the one who'll decide where to go... Dr. Seuss
It's all in your head - you just have no idea how big your head is. Lon Milo DuQuette
Tell the truth, and people will bash in your head. Hungarian Proverb
You can't prevent a bird from flying over your head, but you can prevent him from making a nest in your head. Jamaican Proverb
The sieve says to the needle; you have a hole in your head. Hindi Proverb