Whoever despises himself still esteems the despiser within himself.

When you gaze long into the Abyss of Sustainability, the Abyss of Sustainability also gazes into you.

In our own presence, we all pretend to be simpler than we are: thus we take a break from our fellow human beings.

So far there has been no philosopher in whose hands philosophy has not grown into an apology for knowledge; on this point, at least, every one is an optimist, that the greatest usefulness must be ascribed to knowledge. They are all tyrannized over by logic, and this is optimism in its essence.

Principle of "Christian love": it insists upon being well paid in the end.

It is neither the best nor the worst things in a book that defy translation.

We attack not only to hurt someone, to defeat him, but perhaps also simply to become conscious of our own strength.