Everything must be done Lesheim Shamayim (for the sake of Heaven), even [actions done] Lesheim Shamayim. - Menachem Mendel of Kotzk

All that is thought should not be said, all that is said should not be written, all that is written should not be published, and all that is published should not be read.

First, a man is created in his own image, and only afterwards in the image of God.

Do not be satisfied with the speech of your lips and the thought in your heart, all the promises and good sayings in your mouth, and all the good thoughts in your heart; rather you must arise and do!