Sensuality often hastens the growth of love so much that the roots remain weak and are easily torn up. Beyond Good and Evil

The pain of parting is nothing to the joy of meeting again. Nicholas Nickleby

Because we are the cause of our environmental problems, we are the ones in control of them, and we can choose or not choose to stop causing them and start solving them. The future is up for grabs, lying in our own hands. We don’t need new technologies to solve our problems; while new technologies can make some contribution, for the most part we "just" need the political will to apply solutions already available. Collapse: How Societies Choose to Fail or Succeed

Variant translation: If I had to define man it would be: a biped, ungrateful. Notes from Underground