God enters by a private door into every individual.

Our faith comes in moments; our vice is habitual.

The faith that stands on authority is not faith.

America is a poem in our eyes; its ample geography dazzles the imagination, and it will not wait long for metres.

Life consists in what a man is thinking of all day.

It is not length of life, but depth of life.

Life is a succession of lessons which must be lived to be understood. All is riddle, and the key to a riddle is another riddle.

All life is an experiment. The more experiments you make the better.