Nature is also great fun. To pretend that nature isn't fun is to miss much of the joy of being alive.

In our heart we know that life loves life. Yet we feast on some of the other life-forms with which we share our planet; we kill to live. Taste is what carries us across that rocky moral terrain, what makes the horror palatable, and the paradox we could not defend by reason melts into a jungle of sweet temptations.

For me, life offers so many complexly appealing moments that two beautiful objects may be equally beautiful for different reasons and at different times. How can one choose?

As people flock to urban centers where ground space is limited, cities with green walls and roofs and skyscraper farms offer improved health and well-being, renewable resources, reliable food supply, and relief to the environment.

Nature neither gives nor expects mercy.

Our sense of safety depends on predictability, so anything living outside the usual rules we suspect to be an outlaw, a ghoul.

We have vexed and bothered every plant and every animal on every continent.