words of wisdom

my waking thought of yesterday, "my body is my instrument," has inspired me. here are a few other words of wisdom:

everyone is doing the best they can.
one day at a time.
will this matter?
no one knows the future.
[whatever your fortune cookie says], in bed.
don't sweat the small stuff. it's all small stuff.
feel my feet. (zoe)

what are some words of wisdom you live by?