When one speaks of humanity, ...

When one speaks of humanity, the idea is fundamental that this is something which separates and distinguishes man from nature. In reality, however, there is no such separation: \
When one speaks of humanity, the idea is fundamental that this is something which separates and distinguishes man from nature. In reality, however, there is no such separation: "natural" qualities and those called truly "human" are inseparably grown together. Man, in his highest and noblest capacities, is wholly nature and embodies its uncanny dual character. Those of his abilities which are terrifying and considered inhuman may even be the fertile soil out of which alone all humanity can grow in impulse, deed, and work.

Quotes from the same author

Rejoicing in our joy, not suffering over our suffering, makes someone a friend.
You need chaos in your soul to give birth to a dancing star.
Love is blind; friendship closes its eyes.
We love life, not because we are used to living but because we are used to loving.
The man of knowledge must be able not only to love his enemies but also to hate his friends.