Those with confidence and certainty, think and act.

Those lacking confidence and certainty, denounce and manipulate.

Confidence comes from the habitual use of one's mind in a rational, sensible way.

Angry, humorless moralism comes from a mind in the habit of forming rushed, emotional and unreasoned conclusions--and attempting to hold on to them.

A confident mind leads to a confident personality who never wants or needs to control others.

An unconfident mind leads to a personality interested in gaining the control over others that never was accomplished in one's mind.

You find out what kind of confidence a person has--or lacks--not primarily by what he claims (or proclaims) to be his ideas, but primarily by what he shows himself to be, in practice.