It is impossible to converse with people to any purpose, who only use affirmatives and negatives. Before you can bring them to a point, to start fairly from, you must go back to the simple principles that were antecedent to the prejudices broached by power; and it is ten to one but you are stopped by the philosophical assertion, that certain principles are as practically false as they are abstractly true.* Nay, it may be inferred, that reason has whispered some doubts, for it generally happens that people assert their opinions with the greatest heat when they begin to waver; striving to drive out their own doubts by convincing their opponent, they grow angry when those gnawing doubts are thrown back to prey on themselves.

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