Without Contraries is no progression. Attraction and Repulsion, Reason and Energy, Love and Hate, are necessary to Human existence.
Opposition may become sweet to a man when he has christened it persecution.
Opposition is true friendship.
Opposition is not necessarily enmity; it is merely misused and made an occasion for enmity.
Husbands and wives generally understand when opposition will be vain.
Excess of sorrow laughs. Excess of joy weeps.