BT San 105a(53) :חוצפא מלכותא דלא תאגא הוא
: audacity is kingship without a crown
See the entire entry for ḥṣup̄, ḥuṣpā n.m. audacity
BT San 105a(53) :חוצפא אפלו כלפי שמיא מהניא
: boldness is effective even towards Heaven
See the entire entry for klpy prep. towards