The English language is filled to the brim with impactful, deep, and sometimes whimsical imagery: Have you ever stopped to think about how much we rely on a vast array of unusual phrases to relay very common concepts? We are of course talking about idioms, those quirky and eccentric sentences that, if anything, provide a bit of color and variety to our everyday lives. But have you wondered where the idioms we say daily come from? Who was the first person to warn someone not to look into a gifted horse's mouth? Don't worry, we got you covered: We have researched the origins of 10 of the most common idioms in the English language. Enjoy!