Knowledge of the truth I may perhaps have attained to; happiness certainly not. What shall I do? Accomplish something in the world, men tell me. Shall I then publish my grief to the world, contribute one more proof for the wretchedness and misery of existence, perhaps discover a new flaw in human life, hitherto unnoticed? I might then reap the rare reward of becoming famous, like the man who discovered the spots on Jupiter. I prefer, however, to keep silent.

When you say 'Yes' or promise something, you can very easily deceive yourself and others also, as if you had already done what you promised. It is easy to think that by making a promise you have at least done part of what you promised to do, as if the promise itself were something of value. Not at all! In fact, when you do not do what you promise, it is a long way back to the truth.

Philosophy is life's dry-nurse, who can take care of us - but not suckle us.

The difference between an admirer and a follower still remains, no matter where you are. The admirer never makes any true sacrifices. He always plays it safe. Though in words, phrases, songs, he is inexhaustible about how highly he prizes Christ, he renounces nothing, gives up nothing, will not reconstruct his life, will not be what he admires, and will not let his life express what it is he supposedly admires.

Certainty... lurks at the door of faith and threatens to devour it.

This fact, that the opposite of sin is by no means virtue, has been overlooked. The latter is partly a pagan view, which is content with a merely human standard, and which for that very reason does not know what sin is, that all sin is before God. No, the opposite of sin is faith.

My scholarly expectation is then that I may succeed in becoming clever in philosophy in spite of my stupidity.