ЧЕМ БОЛЬШЕ ЗНАЕШЬ, ТЕМ БОЛЬШЕ СОМНЕВАЕШЬСЯ

Cf:Doubt grows up with knowledge (Am.). Не that knows nothing, doubts nothing (Br.). Не who knows most knows best how little he knows (Am.). Increase your knowledge and increase your grief (Am.). The more you know, the more you know what you don't know (Am.)