Page "Historical materialism" Paragraph 37

In the 1872 Preface to the French edition of Das Kapital Vol.

1, Marx also emphasised that " There is no royal road to science, and only those who do not dread the fatiguing climb of its steep paths have a chance of gaining its luminous summits ".

Reaching a scientific understanding was hard work.

Conscientious, painstaking research was required, instead of philosophical speculation and unwarranted, sweeping generalisations.