Keep Coding

I've tried putting the following in my Preferences.el file:
(add-hook 'clojure-mode-hook 'paredit-mode)
(add-hook 'cider-mode-hook 'cider-turn-on-eldoc-mode)
(setq cider-prompt-save-file-on-load nil)
Unfortunately, this has no effect. Is there something more I need to do to get these to take effect?

Adding the following at the top should do the trick:
(add-hook 'clojure-mode-hook 'cider-mode)
cider-mode does not load by default for clojure-mode files.