On Ryukyu islands, the expert Kara-te practitioners, used their skills to subdue, control and generally teach bullies A lesson, rather than severely injure or kill their attackers. They knew full well the consequences of their actions and the trail of blood and retribution that would ensue.

Show me your talents and I'll show you your net worth.

Unsettling are the days in which everyone is an expert.

I was recently inside a hospital that had gone wireless and it was a forest of microwave antennas! It is sad that the medical profession is in the process of becoming expert on microwave radiation sickness due to willfully inducing it into their own staff!

The best reason for committing loathsome and detestable acts--and let's face it, I am considered something of an expert in this field--is purely for their own sake. Monetary gain is all very well, but it dilutes the taste of wickedness to a lower level that is obtainable by anyone with an overdeveloped sense of avarice. True and baseless evil is as rare as the purest good--and we all know how rare that is...

I am not an expert in medical field.

You can be an expert any field of study with consistent effort and consistent learning.

The biggest mistake a person can make is to lie to an engineer about a subject that they specialize in.

The shoemaker makes a good shoe because he makes nothing else.

We need to apply the rules of 10,000 hours in order to achieve the level of a skill commensurate with the status of a world-class expert.