"Religious learning as the only true science, whose sole aim was the understanding of God's word."
For true science to take place these must be rigidly separate from each other.
"Do you say this knight's teachers did not know enough to learn true science?"
A true science is constructed on hypotheses, which are arrived at by the virtue of observed phenomena.
Faraday's work, in his day, was known as "natural philosophy," which, perhaps, is what all true science ought to be.
It is the source of all true science.'
Chemistry began as a true science during the 1600s.
Only systematics counted as true science and field studies were considered inferior through much of the 19th century.
I am, though using true science rather than wishful thinking.
Some astrologers claim that they practice a true science with verifiable results.