Incorrect assumptions lie at the root of every failure. Have...
Incorrect assumptions lie at the root of every failure. Have the courage to test your assumptions.
![Brian Tracy Quote About Inspirational, Lying, Failure: Incorrect Assumptions Lie At The...](http://qt.azureedge.net/resources/quotes-images-large/incorrect-assumptions-lie-at-the-root-of-every-failure-have-the-courage-to-test-d014a90e4cfd882e2bac204739dc550a.jpg)
Incorrect assumptions lie at the root of every failure. Have the courage to test your assumptions.