Catechism of the Catholic Church<quoted text>
Atheists have no basis for moral values.
The only thing that matters is that as often as you can for as long as you can you look out for yourself at the expense of everyone and everything else.
That is a fact.
LIFE IN CHRIST
MAN'S VOCATION LIFE IN THE SPIRIT
THE DIGNITY OF THE HUMAN PERSON
1776 "Deep within his conscience man discovers a law which he has not laid upon himself but which he must obey. Its voice, ever calling him to love and to do what is good and to avoid evil, sounds in his heart at the right moment.... For man has in his heart a law inscribed by God.... His conscience is man's most secret core and his sanctuary. There he is alone with God whose voice echoes in his depths."47