A guilty conscience is nothing but doing something 
which consciously you are aware you should not do.
-Harbhajan Singh Khalsa, 'Yogi Bhajan"
There is always a voice saying the right thing to you somewhere, 
if you'll only listen for it. 
-Thomas Hughes
The voice of conscience is so delicate
that it is easy to stifle it;
but it is also so clear
that it is impossible to mistake it.
-Germaine de Stael
Conscience reigns but it does not govern.
-Paul Valery 
Conscience warns as a friend
before it punishes as a judge.
-Stanislaus I
Conscience is thoroughly well-bred,
and soon leaves off talking to those
who do not wish to hear.
-Samuel Butler
Conscience is a dog that does not stop us from passing
but that we cannot prevent from barking.
-Nicolas Chamfort
They talk of a man betraying his country,
his friends, his sweetheart.
There must be a moral bond first.
All a man can betray is his conscience.
-Joseph Conrad
There is no greater source of pride
than a clear conscience;
and there is no greater means of humiliation
than a guilty conscience.
-Hazrat Inayat Khan
There is only one good.
And that is to act
according to the dictates of one's conscience.
-Simone de Beauvoir
A good conscience is to the soul
what health is to the body.
-Joseph Addison
Storms in the conscience
will always lodge in the countenance.
-Wellins Calcott
A clear conscience shines
not only in the eyes.
-Lebanese Proverb
No man rejoiceth securely
unless he hath within him
the testimony of a good conscience.
-Thomas a Kempis
A clear and innocent conscience
fears nothing.
-Elizabeth I
He will easily be content and at peace,
whose conscience is clear.
-Thomas a Kempis
If you would sleep soundly,
take a clear conscience to bed with you.
-Benjamin Franklin
A clear conscience is a soft mat.
-Swahili Proverb
There is no pillow so soft
as a clear conscience.
-French Proverb
Clear conscious sleeps through thunder.
-Jamaican Proverb
Lie not against your conscience
Lest it burn you.
-Tiruvalluvar
Conscience is a man's compass,
and though the needle sometimes deviates,
though one often perceives irregularities in directing one's course by it,
still one must try to follow its direction.
-Vincent van Gogh
The only wise and safe course
is to act from day to day
in accordance with what
one's own conscience seems to decree.
-Winston Churchill
Let me consider this as a resolution
by which I pledge myself
to act in all variety of circumstances
and to which I must recur often
in times of carelessness and temptation -
to measure my conduct by the rules of conscience.
-Ralph Waldo Emerson
Reason often makes mistakes,
but conscience never does.
-Josh Billings
Conscience is the chamber of justice.
-Origen
Conscience is the perfect interpreter of life.
-Karl Barth
Conscience is the most perfect mirror ever made -
the one looking glass that cannot be broken.
-Fred Van Amburgh
Conscience is the mirror of our souls,
which represents the errors of our lives in their full shape.
-George Bancroft

The human voice can never reach the distance
that is covered by the still small voice of conscience.
-Mohandas Gandhi
There is one thing alone
that stands the brunt of life throughout its length:
a quiet conscience.
-Euripides
Conscience is the sentinel of virtue.
-Johann Kaspar Lavater
The man who can really stand alone in the world,
only taking counsel from his conscience -
that man is a hero.
-Soren Kierkegaard
I know myself now, and I feel within me
A peace above all earthly dignities,
A still and quiet conscience.
-William Shakespeare
Guilt is not your real conscience;
love is your real conscience.
-Robert Holden
The foundation of true joy
is in the conscience.
-Lucius Annaeus Seneca
Real human progress
depends on a good conscience.
-Albert Einstein
Our consciences
are not all of the same pattern.
-George Eliot
I cannot and will not cut my conscience
to fit this year's fashions.
-Lillian Hellman
Conscience is one's own intellectual conviction.
-Sivananda
The conscience of a man changes
according to his experiences and education.
-Sivananda
Man's conscience is a creation
of his evolving nature.
-Aurobindo Ghose
It was said that conscience is
'an emotional understanding of the truth about oneself
in one particular instance.'
-Rodney Collin
But our conscience is seldom, if ever, untainted by self-interest,
because it is in some degree, attached to the ego
if as its higher principle.
-Hugh l'Anson Fausset
'Conscience,' or what we define more superficially
as our sense of what is right,
reflects, however faultily, the idea of unity.
-Hugh l'Anson Fausset
Conscience is the voice of the soul.
-Jean-Jacques Rousseau
Conscience is the magnet of the soul.
It has a divine polarity.
-Horace Mann
Conscience is the voice of the spirit.
The recognition of conscience is in the soul.
-Rodney Collin
In the spheres of conscience
the soul of man and the Spirit of God
meet and become one.
-Hazrat Inayat Khan
Oh conscience, upright and stainless,
how bitter sting to thee is a little fault!
-Dante Alighieri
Labour to keep alive in your breast
that little sparke of celestial fire called conscience.
-George Washington