Every teacher worth their salt will tell you that they are always a learner. Knowledge is on a continuum: there are many things within us that we know and that we have fully embodied and mastered, these are things we can teach.
My meditation teacher Swami Chidvilasananda said many years ago, "If you wait, you wait forever." Being a great procrastinator, I was miffed by this comment, saying to myself: I get stuff done eventually, I don't understand what she means.
Pure Life.. the literal translation of the common Costa Rican saying "Pura Vida." I asked someone in Nosara this afternoon how their day was going and they replied the same as many others who live in Costa Rica, "Pura Vida."