There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.

There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.

科学中没有禁忌的问题，没有敏感或微妙到无法探究的问题，没有神圣的真理。

-- Carl Sagan 卡尔·萨根