The proofs which social economy can produce from the history of the civilisation of mankind of the reasonableness of bringing about the union of all mankind under the law of right, are perhaps those which are the clearest to sound human understanding.

• 社会经济学能够从人类文化史提出的证据，说明全人类在正义的法律之下联合起来是合情合理的，看来在人类健全的理智之前，这一证明是最为明显的。