There were certain questions about the foundations of morals that advances in science all threaten to make more complicated.

There were certain questions about the foundations of morals that advances in science all threaten to make more complicated.

关于道德基础的某些问题，随着科学的进步，这些问题都有可能变得更加复杂。

-- Leon Richard Kass 利昂·理查德·卡斯