逻辑的普遍有效性同“凡人皆有死”这类命题的偶然的普遍有效性相对比，可以称为本质的普遍有效性。

The general validity of logic might be called essential, in contrast with the accidental general validity of such propositions as' all men are mortal '.

youdao

凡人皆有一死，然，死的意义和价值常有不同。

All men must die, yet differ in values and meanings.

youdao

凡人皆有一死，然，死的意义和价值常有不同。

All men must die, yet differ in values and meanings.

youdao