Who said "He who does not know how to weep does not know how to laugh."?

This quote is attributed to Sancho Panza.

He who does not know how to weep does not know how to laugh. - Sancho Panza

"He who does not know how to weep does not know how to laugh."

Sancho Panza Humor

Character in Don Quixote

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"Every dog has his day."

"All that glisters is not gold."

"Proverbs are short sentences drawn from long experience."

"Hunger is the best sauce."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."