Some people due to their good-naturedness can completely transform a person’s life.
For Enrico Fermi, it was Adolfo Amidei. Amidei was the colleague of Fermi’s father at the railways. He followed science and mathematics, and Fermi came to know about it. The boy - merely thirteen years old - introduced himself by asking a question about projective geometry. Subsequently, Amidei was deeply impressed and decided to guide Fermi's education. He supplied the boy with books - which progressively got advanced over the years. The boy returned the books ceremoniously, digesting all the information.
Amidei also guided Fermi to his college-level education, by selecting the school he should go too. While browsing the entrance exam requirements, Amidei declared that Fermi knew everything already, and he was going to achieve the first position. It was even more dramatic than that.
The entrance exam for Scuola Normale Superiore(at Pisa) had a section on essays. Enrico Fermi’s theme was “Characteristics of Sound” - something that a high school student should know about. Fermi started with a simple introduction and moved to full-blown differential equation of a vibrating rod. Additionally, he solved it using Fourier analysis, finding the eigenvalues and eigenfrequencies. The examiner was so shocked while looking at the essay that he personally decided to meet the student. Fermi was told that he will become a great scientist. Further, the examiner mentioned that his entrance to the school was guaranteed - it was nearly impossible that other students even came close to him. The examiner was right on both accounts - Enrico Fermi went on to do great things.
In a way, Amidei’s generosity to a schoolboy changed the world.
P.S: This post was inspired by Emelio Segre’s biography. Amidei also finds mention in a memoir written by Fermi’s wife, Laura.