[154] Moreover, if nothing is to be done in favour of one’s enemies because of any hope of reconciliation, still, at all events, no plant is an enemy, but all plants are at peace with and useful to one. And those which produce eatable fruit are exceedingly necessary, as their fruit is either actual food or equivalent to food. And why should men be excited to enmity against things which are not hostile, cutting them down, or burning them, or tearing them up by the roots; things which nature herself has brought to perfection by streams of water, and by the admirable temperature of the summer, so that they contribute annual revenues to mankind as subjects to their kings?