Xavier's School Medallion

 Mutatis Mutandis ("changing [only] those things which need to be changed") -- School Motto

The Xavier's School for Gifted Youngsters is a special institute founded and led by Professor Charles Xavier to train young mutants in controlling their powers and help foster a friendly human-mutant relationship.

Wolverine later named it to the Jean Grey School of Higher Learning. But the students still call it We're-All-Gonna-Die High.