Moral variation is best explained by assuming that morality, unlike science, is not based on reason or observation.

道德不像科学那样基于推理或观察，这一假设最好地解释了道德差异性。

This is particularly the case when science begins to look, as moral psychology is doing, at the mechanisms by which people make decisions about right or wrong.

这种情况下尤其显著，当科学睁开眼睛，道德心理也开始发挥作用-以人们对于对错的判断这样一种机制。

This is a caring, healing, and science-based profession dedicated to the prevention and relief of human suffering. This gives us our moral authority, and a most noble system of ethical values.

这赋予我们道德权威以及最崇高的道德价值系统。

And now that science is behind what many have thought to be a moral issue, perhaps helping others will become an automatic response more often.

现在科学就是隐藏在被人们称为道德问题的别后，或许，帮助他人将会成为一种经常性的自动回复。

They have passed into the sphere of art and science, and neither art nor science knows anything of moral approval or disapproval.

他们已经进入了艺术和科学领域，而科学和艺术均无关乎道德上的赞同与反对。