My definition of an expert in any field is a person who knows enough about what's really going to be scared.

An expert is someone who knows some of the worst mistakes that can be made in his subject, and how to avoid them

HASH, x. There is no definition for this word --nobody knows what hash is.

My definition of an educated man is the fellow who knows the right thing to do at the time it has to be done. You can be sincere and still be stupid.

An expert is a man who has made all the mistakes which can be made, in a narrow field.

There was only one person in charge on the field and that was me,