Final answer:
Mephistopheles tricks Faustus to step outside of the protective circle by using manipulation and preying on Faustus's own desires and weaknesses.
Step-by-step explanation:
The student has asked how Mephistopheles tricks Faustus into leaving the circle of protection. In the legend of Faust, based on a 16th-century German alchemist, Dr. Faustus is a bored and depressed scholar who makes a pact with the devil for worldly pleasures in exchange for his soul. Mephistopheles, the devil's emissary, assists in this process. In most renditions of the story, Faust is tricked or convinced to step outside of the protective circle by clever manipulation or false promises made by Mephistopheles. The exact method can vary depending on the adaptation of the tale, but it typically involves preying on Faustus's hubris, curiosity, and desire for power or knowledge, all themes that mirror the warning against greed and the consequences that come with dealings involving forbidden powers and knowledge.