It is not where we breathe, but where we Love, that we live.

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.

I divide my time as follows: half the time I sleep, the other half I dream. I never dream when I sleep, for that would be a pity, for sleeping is the highest accomplishment of genius.

It is impossible to exist without passion

I do not lack the courage to think a thought whole.

Adversity draws men together and produces beauty and harmony in life's relationships, just as the cold of winter produces ice-flowers on the window-panes, which vanish with the warmth.

If the ethical - that is, social morality- is the highest ... then no categories are needed other than the Greek philosophical categories.