גַּ֤ם אֱוִ֣יל מַ֭חֲרִישׁ חָכָ֣ם יֵחָשֵׁ֑ב אֹטֵ֖ם שְׂפָתָ֣יו נָבֽוֹן׃
Até o tolo, estando calado, é tido por sábio; e o que cerra os seus lábios, por entendido.
Pirkei Avot
Rabbi Akiva said: Merriment and frivolity accustom one to sexual licentiousness; Tradition is a fence to the Torah; Tithes a fence to wealth, Vows a fence to abstinence; A fence to wisdom is silence.