Every man is a priest, even involuntarily; his conduct is an unspoken sermon, which is forever preaching to others.

Our systems, perhaps, are nothing more than an unconscious apology for our faults, a gigantic scaffolding whose object is to hide from us our favorite sin.

True love is that which ennobles the personality, fortifies the heart, and sanctifies the existence.

Philosophy starts with doubt and loves only truth.

Time is but the space between our memories; as soon as we cease to perceive this space, time has disappeared.

Mutual respect implies discretion and reserve even in love itself; it means preserving as much liberty as possible to those whose life we share. We must distrust our instinct of intervention, for the desire to make one's own will prevail is often disguised under the mask of solicitude.

Conquering any difficulty always gives one a secret joy, for it means pushing back a boundary-line and adding to one's liberty.