We call that person who has lost his father, an orphan; and a widower that man who has lost his wife. But that man who has known the immense unhappiness of losing a friend, by what name do we call him? Here every language is silent and holds its peace in impotence.

A fine quotation is a diamond in the hand of a man of wit and a pebble in the hand of a fool.

Our experience is composed rather of illusions lost than of wisdom acquired.

When unhappy, one doubts everything; when happy, one doubts nothing.

The happiness which is lacking makes one think even the happiness one has unbearable.

Solitude vivifies; isolation kills.