Dear children,Permit an old physicist, educator and grandfather to write to you — not because I know your names, but because I know something about dreams.Since late June, your school has found itself at the centre of a national conversation. Much has been said about graduation ceremonies, examination results and feelings of exclusion. Adults have debated policies, criticised decisions, and defended positions. Amid all that noise, I fear the voices most deserving of being heard have too often been yours.So, let me begin with a truth that every child should treasure: