praxis

It will be seen how subjectivism and objectivism, spiritualism and materialism, activity and suffering, only lose their antithetical character, and thus their existence, as such antitheses in the social condition; it will be seen how the resolution of the theoretical antitheses is only possible in a practical way, by virtue of the practical energy of men. Their resolution is therefore by no means merely a problem of knowledge, but a real problem of life, which philosophy could not solve precisely because it conceived this problem as merely a theoretical one.