What makes us afraid is our great freedom in the face of the emptiness that has still to be filled.

All democracies demand common public education because nothing makes people so much alike as the same education.

The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the language of the past, the nearer I shall feel the glow of its life.

Conflicts may be the sources of defeat, lost life and a limitation of our potentiality but they may also lead to greater depth of living and the birth of more far-reaching unities, which flourish in the tensions that engender them.

At the present moment, the security of coherent philosophy, which existed from Parmenides to Hegel, is lost.

A scientific approach means knowing what one knows and what one doesn't. Absolute or complete knowledge is unscientific.

Only a development of thought achieved through the self-education of the whole man can prevent any body of thought whatsoever from becoming a poison; can prevent enlightenment from becoming an agent of death.