A moderate addiction to money may not always be hurtful; but when taken in excess it is nearly always bad for the health. Clarence Day
Courage stands halfway between cowardice and rashness, one of which is a lack, the other an excess of courage. plutarch
Excess generally causes reaction, and produces a change in the opposite direction, whether it be in the seasons, or in individuals, or in governments.plato
Excess of liberty, whether it lies in state or individuals, seems only to pass into excess of slavery.plato
The passions are like fire, useful in a thousand ways and dangerous only in one, through their excess.Christian Nestell Bovee