![](https://directory.thearizona100.com/wp-content/uploads/sites/62/2018/10/web1_LEONARDO_DA_VINCI-1.jpg)
“The only source of knowledge is experience” – Albert Einstein, scientist
“How many books do you have?” – Michael Hussar, artist
The difference between “good” and “great” is how much time you put into your pursuit. When asking about one’s credentials for a position, invariably you’ll hear the response, “I took X class,” or “I have Y certification.” Those are just starting points.
The masters never stop learning. Leonardo da Vinci carried a mirror and used it to study how the three-dimensional world around him translated itself into two dimensions.
A leader constantly pursues knowledge; we are our own best teacher.
– Sgt. Mike Wesley, USMC (Retired)