sapere aude!

Kant 1784: "Enlightenment is man's emergence from his self-incurred immaturity. Immaturity is the inability to use one's own understanding without direction from another. This immaturity is self-incurred if its cause is not lack of understanding, but lack of resolve and courage to use it without another's guidance. Sapere aude! Dare to know! That is the motto of Enlightenment."