"If you are joyful, do not worry about lukewarmness. Joy will shine in your eyes and in your look, in your conversation and in your countenance. You will not be able to hide it because joy overflows."
Albanian-born Catholic nun and missionary who founded the Missionaries of Charity in Kolkata. She became internationally known for work with people who were poor, sick, and dying. She received the Nobel Peace Prize in 1979 and was later canonized as Saint Teresa of Calcutta.