As a universal history of philosophy, the history of philosophy must become one great unity.

Only then, approaching my fortieth birthday, I made philosophy my life's work.

Just as primitive man believed himself to stand face to face with demons and believed that could he but know their names he would become their master, so is contemporary man faced by this incomprehensible, which disorders his calculations.

The community of masses of human beings has produced an order of life in regulated channels which connects individuals in a technically functioning organisation, but not inwardly from the historicity of their souls.

Greatness of mind becomes an object of love only when the power at work in it itself has a noble character

If philosophy is practice, a demand to know the manner in which its history is to be studied is entailed: a theoretical attitude toward it becomes real only in the living appropriation of its contents from the texts.

Reason is like an open secret that can become known to anyone at any time; it is the quiet space into which everyone can enter through his own thought