All the miseries of mankind come from one thing, not knowing how to remain alone.

Faith is a sounder guide than reason. Reason can only go so far, but faith has no limits.

It is a dangerous experiment to call in gratitude as an ally to love. Love is a debt which inclination always pays, obligation never.

Nothing gives rest but the sincere search for truth.

Contradiction is not a sign of falsity, nor the lack of contradiction a sign of truth.

Man finds nothing so intolerable as to be in a state of complete rest, without passions, without occupation, without diversion, without effort. Then he feels his nullity, loneliness, inadequacy, dependence, helplessness, emptiness.

Men seek rest in a struggle against difficulties; and when they have conquered these, rest becomes insufferable.