We go all wrong by too strenuous a resolution to go right.
Nathaniel Hawthorne
Be moderate in order to taste the joys of life in abundance.
Epicurus
He who makes a paradise of his bread makes a hell of his hunger.
Antonio Porchia
Even nectar is poison if taken to excess.
Hindu Proverb
Everything in moderation, including moderation.
Oscar Wilde
We may outrun By violent swiftness And lose by over-running.
William Shakespeare
They are sick that surfeit with too much, as they that starve with nothing.
We find our energies are actually cramped when we are overanxious to succeed.
Michel de Montaigne