Mishnah Yevamot 6:5משנה יבמות ו׳:ה׳
An ordinary priest shall not marry a woman incapable of procreation, unless he already has a wife or children. Rabbi Judah said: even though he has a wife and children he shall not marry a woman incapable of procreation, since she is a zonah, as mentioned in the Torah. But the Sages said: the term zonah implies only a female convert, freed slavewoman and one who has been subjected to illicit intercourse.
Mishnah Yevamot 6:6משנה יבמות ו׳:ו׳
A man shall not abstain from procreation unless he already has children. Beth Shammai says: two males, And Beth Hillel says: male and a female, for it says, “Male and female created he them” (Genesis 5:2). If a man married a woman and lived with her for ten years and she bore no child, he may not abstain [any longer from the duty of propagation]. If he divorced her she is permitted to marry another, and the second husband may also live with her for ten years. If she miscarried [the period of ten years] is counted from the time of her miscarriage. A man is commanded concerning the duty of propagation but not a woman. Rabbi Yohanan ben Beroka says: Concerning both of them it is said, “And God blessed them; and said to them… “Be fruitful and multiply” (Genesis 1:28).
Yevamot 62b:9יבמות ס״ב ב:ט׳
Rabbi Akiva says that the verse should be understood as follows: If one studied Torah in his youth he should study more Torah in his old age; if he had students in his youth he should have additional students in his old age, as it is stated: “In the morning sow your seed, etc.” They said by way of example that Rabbi Akiva had twelve thousand pairs of students in an area of land that stretched from Gevat to Antipatris in Judea, and they all died in one period of time, because they did not treat each other with respect.
Genesis 49:6בראשית מ״ט:ו׳
Let not my person be included in their council,Let not my being be counted in their assembly.For when angry they slay a man, And when pleased they maim an ox.
Pirkei Avot 4:1משנה אבות ד׳:א׳
Who is he that is honored? He who honors his fellow human beings as it is said: “For I honor those that honor Me, but those who spurn Me shall be dishonored” (I Samuel 2:30).
Pirkei Avot 4:21משנה אבות ד׳:כ״א
Rabbi Elazar Ha-kappar said: envy, lust and [the desire for] honor put a man out of the world.
Pirkei Avot 6:3משנה אבות ו׳:ג׳
One who learns from his fellow one chapter, or one halakhah, or one verse, or one word, or even one letter, is obligated to treat him with honor; for so we find with David, king of Israel, who learned from Ahitophel no more than two things
Pirkei Avot 6:6משנה אבות ו׳:ו׳
Greater is learning Torah than the priesthood and than royalty, for royalty is acquired by thirty stages, and the priesthood by twenty-four, but the Torah by forty-eight things. [...] Who keeps himself far from honors