Speaking in German with an English interpreter, German Chancellor Angela Merkel gave a stirring and inspirational keynote speech to the graduating class at Harvard University Thursday. Telling students they must ‘tear down walls of ignorance’ and reject ‘isolationism’ as they tackle global problems such as climate change and terrorism, she called for more international collaboration instead of ‘isolationism’ and ‘protectionism,’ a not-so-subtle reference to Trump’s key policies.

‘More than ever, our way of thinking and our actions have to be multilateral rather than unilateral. Global rather than national. Outward-looking rather than isolationist. In short, we have to work together rather than alone,’ Merkel said. ‘You, dear graduates, will have a quite different opportunity to do this in the future than my generation did.’

Without mentioning Trump by name, Merkel stressed that many threats come ‘not from physical walls but from abstract barriers’. She cautioned against ‘walls in people’s minds’ that can prevent leaders from working together on global challenges. Sound familiar?