The searching-out and thorough investigation of truth ought to be the primary study of man.
Marcus Tullius CiceroIt is not enough merely possess virtue, as if it were an art; it should be practiced.
Marcus Tullius CiceroNothing is so swift as calumny, nothing is more easily propagated, nothing more readily credited, nothing more widely circulated.
Marcus Tullius CiceroBut if you should take the bond of goodwill out of the universe no house or city could stand, nor would even the tillage of the fields abide. If that statement is not clear, then you may understand how great is the power of friendship and of concord from a consideration of the results of enmity and disagreement. For what house is so strong, or what state so enduring that it cannot be utterly overthrown by animosities and division?
Marcus Tullius Cicero