The thinking person has the strange characteristic to like to create a fantasy in the place of the unsolved problem, a fantasy that stays with the person even when the problem has been solved and truth made its appearance.

The day is of infinite length for him who knows how to appreciate and use it.

Do not hurry; do not rest.

Let mental culture go on advancing, let the natural sciences progress in even greater extent and depth, and the human mind widen itself as much as it desires: beyond the elevation and moral culture of Christianity, as it shines forth in the Gospels, it will not go.

The person of analytic or critical intellect finds something ridiculous in everything. The person of synthetic or constructive intellect, in almost nothing.

Men are much more apt to agree in what they do than in what they think.

The greatest happiness for the thinking person is to have explored the explorable and to venerate in equanimity that which cannotbe explored.