Karen Kimsey-House: Disrupt Your Life in a Good Way, Pt. 1: Don't Fear Heartbreak... It's Growth. In 20 years of helping people find fulfillment and training coaches to do the same, I've noticed that we human beings expend an inordinate amount of time and energy protecting our hearts from shattering.
The cost? We become armored and narrow and stop evolving. In fact, the only way we can evolve is when our sense of what we know and trust is destroyed. As soon as we think we've got it all figured out and try to keep things the same, we die. 20 Things I Should Have Known at 20. Flouride.