Trust your gut instinct over spreadsheets. There are too many variables in the real world that you simply can't put into a spreadsheet. Spreadsheets spit out results from your inexact assumptions and give you a false sense of security. In most cases, your heart and gut are still your best guide.

In the business world today, failure is apparently not an option. We need to change this attitude toward failure - and celebrate the idea that only by falling on our collective business faces do we learn enough to succeed down the road.

The real metric of success isn't the size of your bank account. It's the number of lives in whom you might be able to make a positive difference.

Naveen Jain Quotes