"In Ne”ilah [the closing prayer] of Yom Kippur, what did he [the Cohen] say? “And Hashem will bless you from Zion and you will see the good of Jerusalem all of the days of your life.” " ~~ Talmud, Sotah 40a
"Prayer is greater than sacrifices." ~~ Talmud, Berakhot
"Prayer is the service of the heart." ~~ Talmud, Ta’anit
"Prayer without intention is like a body without a soul." ~~ Yeshu’ot Meshicho
"Who prays in Jerusalem is as one praying before the Throne of Glory, for the Gate of Heaven is there." ~~ Pirke Derabbi Eliezer
"Eating is the best of prayers." ~~ Avrunin
"Pray for the peace of Jerusalem!" ~~ Psalms (Tehillim) 122:6
"Unless we believe that God renews creation every day, our prayers grow habitual and tedious." ~~ Baal Shem Tov
"The prayers of the sick are more effective than the prayers of others, and are answered first." ~~ Rashi
"Look upon the rainbow and bless its Maker!" ~~ Ben Sira 43:11
"Music is prayer. " ~~ Ludwig Boerne
"Any study of the Torah and any prayer unaccompanied by good deeds and repentance void the Torah and make the prayer unwanted." ~~ Otiyot Derabbi Akiva