“Love is an endless mystery, for it has nothing else to explain it.”– Rabindranath Tagore Related Quotes “Tell the truth. Sing with passion. Work with laughter. Love with heart. ‘Cause that’s all that matters in the end.”– Kris Kristofferson “There is a courtesy of the heart it is allied to love. From its springs the purest courtesy in the outward behavior.”– Johann Wolfgang von Goethe “Men love to wonder, and that is the seed of science.”– Ralph Waldo Emerson