This is the miracle of life: that each person who heeds him or herself knows what no scientist can ever know: who he or she is.

...the reason for [this age's] anxiety and unrest is because in one direction, 'truth' increases in scope and quantity - via science and technology - while in the other, certainty and confidence steadily decline. Our age is a master in developing truths while being wholly indifferent to certitude. It lacks confidence in the good.

There are two kinds of geniuses. The characteristic of the one is roaring, but the lightning is meagre and rarely strikes; the other kind is characterized by reflection by which it constrains itself or restrains the roaring. But the lightning is all the more intense; with the speed and sureness of lightning it hits the selected particular points - and is fatal.

When you were called, did you answer or did you not? Perhaps softly and in a whisper?

A curiously interested observer sees a great deal, a scientifically interested observer is worthy of all honor, and anxiously interested observer sees what others do not see, but a crazy observer sees perhaps the most, his observation is more intense and more persistent, just as the senses of certain animals are sharper than those of man.

...the person who surrenders absolutely to God, with no reservations, is absolutely safe. From this safe hiding-place he can see the devil , but the devil cannot see him.

People try to persuade us that the objections against Christianity spring from doubt. That is a complete misunderstanding. The objections against Christianity spring from insubordination, the dislike of obedience, rebellion against all authority. As a result, people have hitherto been beating the air in their struggle against objections, because they have fought intellectually with doubt instead of fighting morally with rebellion.