Tree roots hold river banks together and stop the wind blowing soil away, there are many creatures that live in woods and they provide a sense of well-being and look nice. ↗
If we may believe our logicians, man is distinguished from all other creatures by the faculty of laughter. He has a heart capable of mirth, and naturally disposed to it. ↗
The most violent appetites in all creatures are lust and hunger; the first is a perpetual call upon them to propagate their kind, the latter to preserve themselves. ↗