Listen. -- needs to be clarified.
Listen... to the voice which tells you what you can be, what you can do. Listen to the voice which explains how and when and why. Listen most of all to the voice which shows you the way in action, sacrifices, and accomplishments.
Do not listen to the voice which highlights your failures. Do not listen to the voice which applauds itself for its greatness. Do not listen to the voice which speaks the same tired semantics in the same scenarios, oblivious to its own demise.
Listening is harder when talking. Consider to whom you listen carefully. Consider the impact of your actions and inactions even more carefully.
Intersection of principles and practices...