I am the Spirit that denies. [Ger., Ich bin der Geist stets verneint.]

The artist alone sees spirits. But after he has told of their appearing to him, everybody sees them.

The formation of one's character ought to be everyone's chief aim.

It is in human nature to relax, when not compelled by personal advantage or disadvantage.

The older we get the more we must limit ourselves if we wish to be active.

Traveling is like gambling: it is always connected with winning and losing, and generally where it is least expected we receive, more or less than what we hoped for.