translation.en: But fully two centuries before, the Enlightenment thinker Jeremy Bentham had exposed the indefensibility of customary practices such as the cruelty to animals.
translation.zh: 但两个世纪前， 启蒙思想家 杰里米 · 边沁 暴露了习惯性实践的 不可靠性 比如说残酷对待动物。