Epicurus (341 BCE – 270 BCE)
Ancient Greek philosopher as well as the founder
of the school of philosophy called Epicureanism
h/t: Anti-Theists. Pro Active Atheists. Opposing Religious Harm.
Always Question Authority
One of the beginnings of human emancipation is the ability to laugh at authority. ~ Hitchens
Always Question Authority 
It’s the existence that’s the hard part.