Definition of Sapere aude!

Sapere aude is a Latin phrase meaning "dare to be wise", or more precisely "dare to know". Originally used by Horace, after becoming closely associated with The Enlightenment by Immanuel Kant in his seminal essay, What is Enlightenment?. Kant claimed it was the motto for the entire period, and used it to explore his theories of reason in the public sphere. Later, Michel Foucault took up Kant's formulation in an attempt to find a place for the individual in his post-structuralist philosophy and to come to terms with the problematic legacy of the Enlightenment.