悠闲自得，是出于专心勤奋；淡泊安适，是出于恭敬畏惧；无思无虑，是出于善于思考；胆大无畏，是出于小心翼翼。
When public speaking， pause frequently. Pause before you say something in a new way， pause after you have said something you believe is important， and pause as a relief to let listeners absorb details.
The true measure of success is how many times you can bounce back from failure.