in reply to USE or Require?

I just dislike the namespace pollution that calling 'use' entails, such as not knowing exactly what functions it imports.

If the docs aren't enough, check the source. And if that isn't enough either, the call use with parameters, as in:

use CGI qw(:standard);
or for that matter,
use CGI ();
to import nothing. use is done at compiletime, and thus IMO is preferable in most cases. I only use require when I need to do conditional inclusion of something.

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It is pitch black. You are likely to be eaten by a grue.