Four languages may classify one as being gifted, and those who can read, write, speak, and understand four or five languages deserve the title of genius.
鄭昭明也認為，真正要稱得上學「會」語言，應該是在一種聽、說、讀、寫均毋需思考的「自動化」程度，以這個標準來看，能學會四、五種以上，恐怕真要稱為「語言天才」了。