Hi there, @otakugirl87141!
I am pretty much certain that the key word you are searching for is: Socrates
The great teacher who used reasoning to guide a student to knowledge and truth was Socrates.
I wish for this answer to be helpful for you. Have a great day and let me know if you have further questions!
~Brooke❤️
The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.
According to Wikipedia.com