"Shammai teaches,
Discipline yourself to study wisdom:
say little and do much;
welcome everyone with grace."
[Pirke Avot 1:15]
These are not three teachings, but one: the Way of Wisdom is to say little and do much; welcoming everyone with grace, compassion, humility, and kindness; and seeing each and every one as a facet of the One and Only.
— Rami Shapiro, Ethics of the Sages