叹为观止 tàn wéi guān zhǐ

DEFINITIONS

  1. (idiom) to gasp in amazement
  2. to acclaim as the peak of perfection

CHARACTERS

叹 tàn sigh, admire
为 wéi do, handle, govern, act; be
观 guān see, observe, view; appearance
止 zhǐ stop, halt, desist; detain