“Mingle a dash of folly with your wisdom.”
“Mingle a little folly with your wisdom; a little nonsense now and then is pleasant.”
“To keep your secret is wisdom, but to expect others to keep it is folly.”
“Love is the wisdom of the fool and the folly of the wise.”
“Folly is as often justified of her children as wisdom.”
“When ignorance is bliss, there's folly in wisdom.”