Nothing is written in stone
If nothing is written in stone… Then is this not a stone? Or did the person engraving this text not realize what the sentence meant while he was writing it out? Or maybe it was done on purpose to confuse people? Let’s go with the last option, it seems like the most fun one.

Nothing Is Written In Stone
YOUR The Best Teacher Ever
You can tell this teacher must have messed up with this student once they saw this. We can just picture the teacher face-palming themselves as soon as they read this plaque. Who knows, maybe this as a cute little prank from the student?

YOUR The Best Teacher Ever