Syntax question for experts

[Sébastien Vauban]

Hi,

A quick question...

I've seen both

--8<---------------cut here---------------start------------->8---
(add-hook 'shell-mode-hook
          (lambda ()
            (whatever)))
--8<---------------cut here---------------end--------------->8---

and

--8<---------------cut here---------------start------------->8---
(add-hook 'shell-mode-hook
          '(lambda ()
             (whatever)))
--8<---------------cut here---------------end--------------->8---

(see the quote in front of lambda).

What is the best writing?  With or without the quote?

By "best", I mean more portable (XEmacs, etc.), or with a longer
life-time (won't become erroneous in a couple of years), etc.

Best regards,
  Seb

-- 
Sébastien Vauban