If wishes were horses, then all beggars would ride. Nothing comes of nothing. Rome wasn't built in one day. The proof of the pudding is in the eating. There's more than one way to skin a cat.
Truth is stranger than fiction.
Don't get your nose out of joint. Watch out for the wolf in sheep's clothing. When digging a ditch for your enemy, dig two. One man's junk is another man's treasure. Be careful not to bite the hand that feeds you.