Insecurity exists in the ...

Insecurity exists in the absence of knowledge. All security derives from knowledge.
Insecurity exists in the absence of knowledge. All security derives from knowledge.

Quotes from the same author

Dianetics is a milestone for man comparable to his discovery of fire and superior to his invention of the wheel and the arch.
When a man has a problem very thoroughly and can't solve it, he really has too few problems. He needs more.
Maintain silence in the presence of birth to save both the sanity of the mother and the child and safeguard the home to which they will go.
It is a remarkable fact, a scientific fact, that the healthiest children come from the happiest mothers.
The only aberration is denial of self.