If we have chosen the position in life in which we can most of all work for mankind, no burdens can bow us down, because they are sacrifices for the benefit of all; then we shall experience no petty, limited, selfish joy, but our happiness will belong to millions, our deeds will live on quietly but perpetually at work, and over our ashes will be shed the hot tears of noble people.
The philosophers have only interpreted the world, in various ways: the point, however, is to change it.
The weapon of criticism cannot, of course, replace criticism of the weapon, material force must be overthrown by material force; but theory also becomes a material force as soon as it has gripped the masses.
All social life is essentially practical.
There is on 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.
(5 May 1818 – 14 March 1883)
German philosopher, economist, historian, political theorist, sociologist, journalist and revolutionary socialist.