Full Idea
From each according to his ability, to each according to his need.
Gist of Idea
From each according to his ability, to each according to his need
Source
Karl Marx (Critique of the Gotha Program [1875]), quoted by Peter Singer - Marx 9
Book Reference
Singer,Peter: 'Marx' [OUP 1996], p.64
A Reaction
Singer says this was not original to Marx, and he placed little emphasis on it. The obvious capitalist response is to ask how you will motivate someone who has huge abilities but few needs. It implies huge inequalities of altruism.