If you want to forward only part of it, you could copy and paste it or take a screenshot. Some email programs will allow editing/deleting portions after you click on forward. You will have to use what works for the email program you're using.
For privacy reasons, you should put your email in the "TO" line and everyone elses in the "BCC" line. People appreciate keeping their email as private as possible. This is a simple way to do that.