In my opinion, being an effective leader requires being an effective listener. The most productive leaders are usually those who are consistently willing to listen and learn.
If you stay intent and your ability warrants it, you will eventually reach the top of the mountain.
You are not a failure until you start blaming others for your mistakes
I'm glad I was a teacher.
Whatever you do in life, surround yourself with smart people who'll argue with you.
IF you are not making mistakes, then you are not doing anything.