To Pammachius
1. Your own silence is my reason for not having written hitherto. For I feared that, if I were to write to you without first hearing from you, you would consider me not so much a conscientious as a troublesome correspondent. But, now that I have been challenged by your most delightful letter, a letter which calls upon me to defend my views by an appeal to first principles, I receive my old fellow-learner, companion, and friend with open arms, as the saying goes; and I look forward to having in you a champion of my poor writings; if, that is to say, I can first conciliate your judgment to give sentence in my favor, and can instruct my advocate in all those points on which I am assailed. For both your favorite, Cicero, and before him— in his one short treatise— Antonius, write to this effect, that the chief requisite for victory is to acquaint one's self carefully with the case which one has to plead.
Source: Letters (New Advent)