Christianity -- Islam -- Hinduism -- Buddhism -- atheism ---- a Jewish response: "If I'm not for myself, who will be? But if I'm only for myself, what am I? And if not now, when?" -- Hillel
From the Rabbis (Chazal): "Where there is no light, you be the light".
"G-d has a sense of humor. He created us!"
"Theoretically, you can never pray too much."
"In order to live a long and healthy life, don't get sick, don't get hurt, don't get old, and don't die."