How do I use the inbuilt LaTeX standard fonts (in this case Times for roman, Helvetica for sans serif and Courier for mono) when using XeLaTeX and fontspec?
I have tried:
\documentclass[journal, a4paper]{IEEEtran}
\usepackage{fontspec}
\renewcommand\rmdefault{ptm}
\renewcommand\sfdefault{phv}
\renewcommand\ttdefault{pcr}
\begin{document}
“Touché,” \textsf{he} \texttt{said}.
\end{document}
without success. Note that I want to be able to type utf8, non-English characters directly and therefore I use fontspec.

\usepackage[utf8]{inputenc}or the even more 'traditional' approach of\'{e}, etc. – Joseph Wright Sep 01 '14 at 08:13\usepackage[utf8]{luainputenc}gives the correct fonts in the document. – Manuel Sep 01 '14 at 13:20