According to accounts of the Buddha's life, it would seem that he had a very deep relationship with nature. He was not born in the royal palace but in a park, under a sala tree. He attained complete enlightenment under the bodhi tree and left this earth to enter Parinirvana, again, between three sala trees. It would seem that the Buddha was very fond of trees.
Eating meat is a leftover of the greatest brutality [killing]; the transition to vegetarianism is the first and most natural consequence of enlightenment.
In dealing with the arrogant asserter of doubt, it is not the right method to tell him to stop doubting. It is rather the right method to tell him to go on doubting, to doubt a little more, to doubt every day newer and wilder things in the universe, until at last, by some strange enlightenment, he may begin to doubt himself.
Instead of striving towards some distant goal that you will never reach, I invite you to stop and ask: How am I avoiding the enlightenment that is already present in each moment? How am I seeing separation where it doesn't exist?
Enlightenment is the natural state of consciousness, the innocent state of consciousness, that state which is uncontaminated by the movement of thought, uncontaminated by control or manipulation of mind.