Thus then a single harmony orders the composition of the whole...by the mingling of the most contrary principles.
When we deliberate it is about means and not ends.
Quid quid movetur ab alio movetur"(nothing moves without having been moved).
Liars when they speak the truth are not believed.
There is nothing unequal as the equal treatment of unequals.
The excellence of a thing is related to its proper function.