On the whole, the longing for solitude is a sign that there still is spirit in a person and is a measure of what spirit there is.

The highest and most beautiful things in life are not to be heard about, nor read about, nor seen but, if one will, are to be lived.

The presence of irony does not necessarily mean that the earnestness is excluded. Only assistant professors assume that.

Anxiety is the dizziness of freedom.

Learning to know anxiety is an adventure which every man has to affront if he would not go to perdition either by not having known anxiety or by sinking under it. He therefore who has leaned rightly to be in anxiety has learned the most important thing.

It seems to be my destiny to discourse on truth, insofar as I discover it, in such a way that all possible authority is simultaneously demolished.

Our life always expresses the result of our dominant thoughts.