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?

What fervent love of herself would Virtue excite if she could be seen!

He has no worse enemy than himself.

It is not enough merely possess virtue, as if it were an art; it should be practiced.

It is a great thing to know your vices.

Though silence is not necessarily an admission, it is not a denial, either.

Every animal loves itself.