Dare to think!

“Handle so, daß die Maxime deines Willens jederzeit zugleich als Prinzip einer a…”

“Only the descent into the hell of self-knowledge can pave the way to godliness.”

“act as if the maxim of your action were to become by your will a general law of…”

“Simply to acquiesce in skepticism can never suffice to overcome the restlessnes…”