>I bet the greatest gurus don't know all the things by heart. But is important to know by heart where to look.

Grigore;

Excellent! That kind of thinking (know where to look) along with other skills got me through many years as an electronic engineer. The following applies to things I have done in my life.

1. Know where the source of knowledge is and how to use it!
2. Have an open mind.
3. Observe experts in action.
4. Always be a third person - do not get involved emotionally in any problem!
5. When an expert is available and you have "hit the wall" ask for assistance!
6. Share what you know with others.

Smile a lot - it always helps! :)

Tom