Insight from London visit

Recently, I have participated in a workshop for TDD in London. This workshop help me to initiate work-out of my every day habits in writing source code. In UK I realized that the most important knowledge is the practical one. Now I understand the Aristotle's quote We are what we repeatedly do. Excellence, then,

Debugging

Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. —Brian W.