Common sense is the measure of the possible; it is composed of experience and prevision; it is calculation applied to life.

Tears are the symbol of the inability of the soul to restrain its emotion and retain its self command.

For purposes of action nothing is more useful than narrowness of thought combined with energy of will.

Time is but the measure of the difficulty of a conception. Pure thought has scarcely any need of time, since it perceives the two ends of an idea almost at the same moment.

To be misunderstood even by those whom one loves is the cross and bitterness of life. It is the secret of that sad and melancholy smile on the lips of great men which so few understand.

Analysis kills spontaneity.

In every loving woman there is a priestess of the past - a pious guardian of some affection, of which the object has disappeared.