That one cannot have one's cake and eat it too is a popular, and correctly quoted English idiomatic proverb or figure of speech. The proverb means the same as "One can be in possession of one's cake, but is not allowed to eat it." This may also indicate having or wanting more than one can handle or deserve, or trying to have two incompatible things. The proverb's meaning is similar to the phrases, "you can't have it both ways" and "you can't have the best of both worlds." Conversely, in the positive sense, it would refer to "having it both ways" or "having the best of both worlds."
This concept, known as opportunity cost, is one of the most important economic concepts.
Although this saying is a commonly accepted idiom, it is flawed in its grammatical logic. The act of eating a cake must first involve possession of the cake, therefore the only way to eat a cake is to first have it. Regardless of this logical flaw, the phrase is still popular and is regarded as socially acceptable and understood.
Read more about Have One's Cake And Eat It Too: History, Literal Meaning, Other Languages
Famous quotes containing the words cake and/or eat:
“Many people will say to working mothers, in effect, “I don’t think you can have it all.” The phrase for “have it all” is code for “have your cake and eat it too.” What these people really mean is that achievement in the workplace has always come at a price—usually a significant personal price; conversely, women who stayed home with their children were seen as having sacrificed a great deal of their own ambition for their families.”
—Anne C. Weisberg (20th century)
“I pray you, how many hath he killed and eaten in these wars? But how many hath he killed? For indeed, I promised to eat all of his killing.”
—William Shakespeare (1564–1616)