The phrase "doth on volition" may seem confusing to some, but it is simply another way of saying "chooses to do." The spelling of "doth" is an old-fashioned form of "does," often used in Shakespearean language. The word "on" is commonly used to indicate a specific subject or focus. And "volition" means the power of one's own will or choosing. Phonetically this phrase can be transcribed as /dʌθ ɒn vəʊˈlɪʃ(ə)n/.