And though we’re glad we chose to write this book when we did, we’d be remiss not to acknowledge that this urge to keep pushing and pushing also has a dark side, one that extends beyond just reasonable doubts. Passion often comes at the expense of time and energy spent on family, friends, and other activities, including the simple joys of life. Too much passion, especially without equally strong self-awareness (a topic we’ll explore later on), can completely uproot your life and lead to burnout.

