There are more elegant ways of doing this automatically, but the
following will work:
\chapter{chapter One}
Blah
\section{summary}
\newcommand{\TextOne}{%
Text-1
}
\TextOne
\chapter{chapter Two}
Blah
\section{summary}
\newcommand{\TextTwo}{%
Text-2
}
\TextTwo
\chapter{Summary}
\TextOne
\TextTwo
Bob T.