"A tree hurts, too"

"A tree, like a human person, can be hurt...Hurt in the sense of injury, damage, or wounds, but of course not in the sense of feeling pain."
"...and like you and me, a tree responds to its wounds. It may not say 'ouch,' but it does react. A tree 'hurts,' too."

("A tree hurts, too", Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1973)

More of the world's conflicts arise out of emotions than out of economics.

"There is a widespread belief among Americans that all human beings are motivated mainly by aspirations for a better life and that they will pursue these aims steadily and with good sense when the opportunity is offered to them. This ignores the fact that there are passions in men which are more powerful than the simple aspiration for a better life- passions based upon religion, nationalism, pride, prejudice, tradition, and so on. More of the world's conflicts arise out of emotions than out of economics. War itself is very bad economics. Still, we cannot seem to get it through our heads that offering people a chance to improve their standard of living does not in itself cause them to behave consistently in a purely rational manner. Man is not content with material things alone, and economic opportunity is only one of his aspirations."

Some Right and Wrong Thinking About American Foreign Assistance
by Thomas E. Naughten, Director, U.S. Operations Mission in Thailand,
International Cooperation Administration,
January 27, 1959