This article is from the Naturism FAQ, by Dennis Kirkpatrick firstname.lastname@example.org with numerous contributions by others.
Here are some rebuttals to common excuses for keeping the body
Centuries of oppressive thought have convinced many people that the
body is a shameful, worthless object that should be hidden. Nonsense!
The human body is one of the most elegant, masterful and valuable
things on earth. There are few things in existence which compare to it
on an artistic, technical, or philosophical level. Celebrate the human
body! It's one of only a handful of truly unique creations.
Some people are afraid of running into someone they know while nude,
or - worse - being seen by someone they know (or someone they don't)
while nude. Remember that you will be around many other people who
will also be nude. You may be momentarily embarrassed at first - this
is normal - but as you spend more time nude, you will realize that if
everyone is nude, no one has cause for nudity-related embarrassment. As
for the possibility that you'll run into someone you know - well, if
you like them, you've got something new in common to talk about?
Besides, what is there to be embarrassed about? They are there, too,
for the same reasons as you.