I'm constructing a Deck and I want to make all the mana Temple Cards. More Specifically I want them to be Temple of Silence, Temple of Plenty, and Temple of Malady. Are these mana cards limited to only four per deck like regular cards or can you put an unlimited amount of them in your deck?
All cards are limited to 4 per deck except Basic lands, and cards that say they bypass this limit (currently Relentless Rats, Shadowborn Apostle, Rat Colony, and Persistent Petitioners). In the case of Basic lands, this means that the type line, which is the text between the image and the text box, has to start with the word "Basic". The rule that covers this is 100.2a. This limitation does not apply to limited play.
The cards you mention are not Basic lands, so you can only have 4 of each in your deck. The only basic lands are:
You can only put four of each Temple in your deck. It's only the basic lands that are exempt from the limit:
100.2a In constructed play (a way of playing in which each player creates his or her own deck ahead of time), each deck must contain at least sixty cards. A constructed deck may contain any number of basic land cards and no more than four of any card with a particular English name other than basic land cards.