Not really. He was talking about the Aryan race who are actually people from South Asia and Persia. They settled in South Asia sometime around the Indus Valley Civilization Era. So guess what. Indians and Iranians are the true master race.
Eh, semi-correct but it's much more complicated than that. Words have more than one meaning and that hold true with the term Aryan. The Aryans began as a nomadic Eurasian tribe that spread throughout Europe and Asia. I assume the large bulk migrated into Asia and bred with local people, spreading the culture down to these indigenous people. And they also largely settled in Iran, which is similar to Aryan because of it being their home; meaning Home of the Aryans.
The word Aryan itself means "noble", so the usage of term by the Nazis is correct as they sought to be the pure, or noble, race.
But the idea/term of Aryan was adopted by Europeans in the 18th/19th century because of connections between various German words to Aryan such "arya" which means "honour" and "ario", a popular Germanic warrior who led an alliance of Germanic tribes against Caesar
So there is some, while thin, actual reasons why the Europeans decided to adopt the term and adjust it to their own needs which is something everybody has done and will continue to do. America calls itself a Republic modeled after Rome's, but the Republic under Rome is very foreign to the Republic we took and modified for our needs
When Hitler was talking about the master race.