“Ers dros ddegawd, mae'r OECD wedi bod ar flaen y gad yn darparu'r dystiolaeth ryngwladol orau sydd ar gael. Dyna pam ro'n i wedi manteisio ar y cyfle i ymweld â'u pencadlys ym mis Medi.
“For well over a decade, the OECD has been at the forefront of providing the very best international evidence available.  That’s why I recently took the opportunity to visit their headquarters in September.