One of the Two Major Compilations of Jewish Religious Teachings and Commentary that was Transmitted Orally
"As learned men grow older, they increase their wisdom; As ignorant men grow older, they increase in folly."
"Better is one hour of repentance and good deeds in this world than a whole life in the World to Come."
"He who eats much evacuates much, and he who increaseth this flesh multiplieth food for worms; but he who multiplieth good works causes peace within himself."
"He who is loud in his prayers is short in his faith... He who prays must direct his heart to heaven."
"One who repeats his lesson a hundred times is not like one who repeats it a hundred and one times."
"Six hundred and thirteen commandments were given to Moses. King David came and reduced them to eleven (Psalms XV). The prophet Isaiah further reduced them to six (Isaiah XXXIII) Micah (VI, 8) reduced them to three: "He hath shewed thee, O man, what is good; and what doth the Lord require of thee, but to do justly, and to love mercy, and walk humbly with thy God."
"Let every man divide his money into three parts, and invest a third in land, a third in business, and a third let him keep in reserve."
"Slander is called the third tongue because it slays three persons, the speaker, the spoken to, and the spoken of."
"The Holy One, blessed be He, hates a person who says one thing with his mouth and another in his heart."
"Whose works exceed his wisdom, his wisdom shall endure; whose wisdom exceeds his works, his wisdom shall perish."