Alain De Botton surveys the 19th Century German thinker Arthur Schopenhauer (1788-1860) who believed that love was the most important thing in life because of its powerful impulse towards ‘the will-to-life.
Schopenhauer on Love - Philosophy: A Guide to Happiness (24:05)
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"The total picture of life is almost too painful for contemplation; life depends on our not knowing it too well."
Living Biographies of Great Philosophers, Doubleday, 1941, p. 246