本文首先假定医生们发现了一种能比现行其他任何治疗疗法都更好的抵挡某些癌症的药物;其次假定提取治疗仅仅一位癌症患者所需足量的该种药物需要砍伐好几株成龄树木;最后假定世界上没有此种树木可供开采。问题是您是否情愿采伐此树来提取该药? 实难应答的棘手问题,对不对?但这又的的确确是一个每时每刻都令医生、癌症患者和环境保护积极分子牵肠挂肚的问题。下面是关于这个引起群情激奋之拮难问题的科学讨论。 This article first assumes that doctors find a drug that is better against some cancers than any other current therapy. Second, it assumes that a sufficient number of such drugs need to be fevered for the treatment of only one cancer patient. Trees; Finally, it is assumed that there is no such tree in the world available for exploitation. The question is whether you are willing to harvest this tree to extract the medicine? The tough questions of hard-to-answer are right? But this is indeed an issue that keeps doctors, cancer patients and environmental activists up and running all the time. The following is a scientific discussion about the crux of the excitement.