Go, go, go.
Someone wrote a comment about whether it's okay to rest on one's laurels or take a break or if it's got to be 'go go go' all the time.
Dear lazy old PIs who want to rest because you've been working hard all your lives,
Take a week off a couple times a year if you need to. You deserve it.
Just don't hang on to a job you're not actually doing.
Especially when there aren't enough jobs for younger, more energetic people who have tons of new ideas and no resources to test them.
Don't "rest on your laurels" by taking credit for what your younger colleagues are doing.
Especially don't do this by keeping them as slaves in your lab writing your grants, making slides for your talks, teaching your students, and generally everything else you're supposedly getting paid salary and grant funding to do.
Oh yeah, and if you're one of the ones taking a week off now and then, tell your lab slaves they deserve the same.