You can't keep the birds of ...

You can't keep the birds of sadness from flying over your head, but you can keep them from nesting in your hair.
 Sharon Creech

Quotes from the same author

Being a mother is like trying to hold a wolf by the ears, Gram said. If you have three or four –or more – chickabiddies, you’re dancing on a hot griddle all the time. You don’t have time to think about anything else. And if you’ve only got one or two, it’s almost harder. You have room left over – empty spaces that you think you’ve got to fill up.
 Sharon Creech
So much depends upon a blue car splattered with mud speeding down the road.
 Sharon Creech
A person isn't a bird. You can't cage a person.
 Sharon Creech
Maybe it was the same with people: if you studied them,you'd see new and different things. But would you like what you saw? Did it depend on who was doing the looking?
 Sharon Creech
What I have since realized is that if people expect you to be brave, sometimes you pretend that you are, even when you are frightened down to your very bones.
 Sharon Creech