Institutio Oratoria

Propositions may be single, double or manifold: this is due to more than one reason. For several charges may be combined, as when Socrates was accused of corrupting the youth and of introducing new superstitions; while single propositions may be made up of a number of arguments, as for instance when Aeschines is accused of misconduct as an ambassador on the ground that he lied, failed to

carry out his instructions, wasted time and accepted bribes.