Language is a form of human reason, which has its internal logic of which man knows nothing.
— Claude LeviStrauss

Conscience is the internal perception of the rejection of a particular wish operating within us.
Sigmund Freud internal quote

Life is the continuous adjustment of internal relations to external relations.
— Herbert Spencer

Hard though it may be to accept, remember that guilt is sometimes a friendly internal voice reminding you that you're messing up.
— Marge Kennedy

Nonviolence means avoiding not only external physical violence but also internal violence of spirit. You not only refuse to shoot a man, but you refuse to hate him.
— Martin Luther King, Jr.