忽视环境影响的生产力指标只是会计把戏,而非真正的进步。
The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.
一个社会的真正考验在于它如何对待最脆弱的成员。