"Music is prayer. " ~~ Ludwig Boerne
"Repentance is valued above sacrifices [Pesikta R.]… above prayer." ~~ Tanna Deve Eliyahu Zuta
"Pray for the peace of Jerusalem!" ~~ Psalms (Tehillim) 122:6
"The gates of prayer are never closed. " ~~ Deuteronomy (Devarim) R.
"Who answers Amen is greater than the suppliant." ~~ Talmud, Berakhot
"What is our prayer for rain? “We thank You for each drop that You have let fall.”" ~~ Talmud, Berakhot
"Better prayer without synagogue than synagogue without prayer." ~~ Abraham Heschel
"Prayer or benediction without intention is like body without soul." ~~ Tanya
"A drunkard who prays is as though he worships idols." ~~ Talmud, Berakhot
"Prayer is the service of the heart." ~~ Talmud, Ta’anit
"You don’t have to pray loudly; just direct your heart to heaven." ~~ Rabbi Chia
"A man must bless God for the evil, just as he blesses Him for the good." ~~ Berakhot 9:5