Full Idea
These sophistical assertions [the antinomies] open us a dialectical battlefield where each party will keep the upper hand as long as it is allowed to attack, and will certainly defeat that which is compelled to conduct itself merely defensively.
Gist of Idea
The battle of the antinomies is usually won by the attacker, and lost by any defender
Source
Immanuel Kant (Critique of Pure Reason [1781], B450/A423)
Book Reference
Kant,Immanuel: 'Critique of Pure Reason', ed/tr. Guyer,P /Wood,A W [CUO 1998], p.468
A Reaction
This seems related to the interesting question of where the 'onus of proof' lies in a major dispute. Kant's implication is that the battles are not rational, if they are settled in such a fashion.