Here he is quoted with the exact (and extended) quote in the book “Thomas Aquinas : His personality and thoughts”.
So why would you ignorantly presume that the quote was in error? Unable to deal with the thought contained within it you reflexively attack the source? Juvenile.
Discuss the issues all you want, but do not make it personal.
What is ignorant about a request for sources? It is a common practice and often offered voluntarily. Explain how a request for a source is an attack, or that it is juvenile. Are you assuming the attitude that a request for a source is an attack on your exalted position and an insult to your dignity? You confirm my observation that yours is an elitist orientation. In the source you cite, Grabmann notes that Thomas strictly avoids exaggerations. You would do well to follow Aquinas example.
Everyone in the world is ignorant but those who agree with you. Talk about juvenile......
Don't you ever get tired of being full of yourself?