The love of man and woman at its best is free and fearless, compounded of body and mind in equal proportions; not dreading to idealize because there is a physical basis, not dreading the physical basis lest it should interfere with the idealization. Love should be a tree whose roots are deep in the earth, but whose branches extend into heaven. ... To fear love is to fear life, and those who fear life are already three parts dead.
Source: Bertrand Russell :Marriage and Morals, 1929
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