Time is a rascally burglar

I heard that phrase somewhere - I can't remember where - and not even Google can help me find out! As I've come to a stage of internet-reliance now which results in my complete bewilderment when a Google search fails to help, I have no idea what else to do about it.

Thus I have stolen someone's phrase, and I'm not even going to acknowledge them! Ironically, I have myself become a rascally burglar.