Reflection is and remains the hardest creditor in existence; hitherto it has cunningly bought up all the possible views of life, but it cannot buy th… - Søren Kierkegaard

But doubt is wily and cunning and never, as it is sometimes said to be, loud or defiant. It is unassuming and sly, not bold or assertive - and the more unassuming, the more dangerous.

Faith is namely this paradox that the single individual is higher than the universal

Sin is man's destruction. Only the rust of sin can consume the soul-or eternally destroy it. For here indeed is the remarkable thing from which already that simple wise man of olden time derived a proof of the immortality of the soul, that the sickness of the soul (sin) is not like bodily sickness which kills the body. Sin is not a passage-way which a man has to pass through once, for from it one shall flee; sin is not (like suffering) the instant, but an eternal fall from the eternal, hence it is not ‘once’, and it cannot possibly be that its ‘once’ is no time. No, just as between the rich man in hell and Lazarus in Abraham's bosom there was a yawning gulf fixed, so is there also a yawning distinction between suffering and sin. Let us not confuse it, lest talk about suffering might become less frank-hearted, because it had also sin in mind, and this less frank-hearted talk might be boldly impudent inasmuch as it is talking this way about sin. This precisely is the Christian position, that there is this infinite distinction between evil and evil, as they are confusedly named; this precisely is the Christian characteristic, to talk of temporal sufferings ever more and more frank-heartedly, more triumphantly, more joyfully, because Christianity regarded, sin, and sin only, is destructive.