self-ev·i·dent /-dənt, ˌdɛnt/
  (a.)自明的
  Self-ev·i·dent a. Evident without proof or reasoning; producing certainty or conviction upon a bare presentation to the mind; as, a self-evident proposition or truth. -- Self-ev*i*dent*ly, adv.
  ◄ ►
  self-evident
       adj : evident without proof or argument; "an axiomatic truth"; "we
             hold these truths to be self-evident" [syn: axiomatic,
              taken for granted(p)]