It is a mania shared by philosophers of all ages to deny what exists and to explain what does not exist.

Never did I think so much, exist so much, be myself so much as in the journeys I have made alone and on foot. Walking has something about it which animates and enlivens my ideas. I can hardly think while I am still; my body must be in motion to move my mind.

Our greatest misfortunes come to us from ourselves.

We lose all that time which we might employ better.

Heroes are not known by the loftiness of their carriage; the greatest braggarts are generally the merest cowards.

Absolute silence leads to sadness. It is the image of death.

Abstract truth is the eye of reason.