Shammai says: make your Torah study fixed, say little and do much, and receive all people with good cheer.

Rabban Gamaliel says: appoint for thyself a teacher, avoid doubt, and do not make a habit of tithing by guesswork.

—Mishnah Avot, 1:15-16

…one who gives tzedakah to the poor and does not know to whom they give, and the poor person does not know from whom they receive. This is purely a mitzvah for its own sake, such as the Chamber of Secrets in the Holy Temple, for there the righteous would give in secret and leave, and the poor…would sustain themselves from it in secret.

—Maimonides, Mishneh Torah, Gifts to the Poor 10:8

Our goal should be to live life in radical amazement…Get up in the morning and look at the world in a way that takes nothing for granted. Everything is phenomenal; everything is incredible; never treat life casually. To be spiritual is to be amazed.

—Abraham Joshua Heschel

One day, Honi was walking along the road and saw a man planting a carob tree. Honi said to him: After how many years will this tree bear fruit? The man said: It will not produce fruit until 70 years have passed. Honi said to him: Is it obvious to you that you will live 70 years, that you expect to benefit from this tree? He said to Honi: Each of us came into a world full of carob trees. Just as my ancestors planted for me, I too am planting for my descendants.

—Babylonian Talmud, 23a