  A generating pair $x, y$ for a group $G$ is said to be
\textbf{\textit{symmetric}} if there exists an automorphism $\varphi_{x,y}$ of
$G$ inverting both $x$ and $y$, that is, $x^{\varphi_{x,y}}=x^{-1}$ and
$y^{\varphi_{x,y}}=y^{-1}$. Similarly, a group $G$ is said to be
\textbf{\textit{strongly symmetric}} if $G$ can be generated with two elements
and if all generating pairs of $G$ are symmetric.
  In this paper we classify the finite strongly symmetric non-abelian simple
groups. Combinatorially, these are the finite non-abelian simple groups $G$
such that every orientably regular hypermap with monodromy group $G$ is
reflexible.
