I am currently writing a paper that includes quotes. But I am not satisfied with the obtained result; I want to make the quotes look more attractive. To do so, the idea is to make them appear bigger than the text and then be colorful. I've tried the \big and \Big followed by \textcolor{}{} commands, but they didn't work.
For the moment, the quotes look like this...

And the corresponding code is the following...
``\textsf{...there was little I could teach \textit{Fermi}, and often I asked him to teach me something instead.}''\\ \par
\hspace{5.2cm}\boldsymbol{-} \textit{Luigi Puccianti}\\
Looking forward to hearing your suggestions.
