It is not easy to distinguish between true and false affection, unless there occur one of those crises in which, as gold is tried by fire, so a faithful friendship may be tested by danger.
But 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?
No man can be brave who thinks pain the greatest evil; nor temperate, who considers pleasure the highest god.
[Lat., Fortis vero, dolorem summum malum judicans; aut temperans, voluptatem summum bonum statuens, esse certe nullo modo potest.]