Letters are among the most significant memorial a person can leave behind them.

Energy will do anything that can be done in this world.

Idea and experience will never coincide in the center; only through art and action are they united.

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

As to the value of conversions, God alone can judge. God alone can know how wide are the steps which the soul has to take before it can approach to a community with Him, to the dwelling of the perfect, or to the intercourse and friendship of higher natures.

One lives but once in the world.

The most original of authors are not so because they advance what is new, but more because they know how to say something, as if it had never been said before.