<Li> Susan Sutherland Isaacs </Li> <Tr> <Td> Important works (show) <Ul> <Li> The Interpretation of Dreams (1899) </Li> <Li> The Psychopathology of Everyday Life (1901) </Li> <Li> Three Essays on the Theory of Sexuality (1905) </Li> <Li> Beyond the Pleasure Principle (1920) </Li> <Li> The Ego and the Id (1923) </Li> </Ul> </Td> </Tr> <Ul> <Li> The Interpretation of Dreams (1899) </Li> <Li> The Psychopathology of Everyday Life (1901) </Li> <Li> Three Essays on the Theory of Sexuality (1905) </Li> <Li> Beyond the Pleasure Principle (1920) </Li> <Li> The Ego and the Id (1923) </Li> </Ul> <Li> The Interpretation of Dreams (1899) </Li>

When do psychosexual development and the ability to love begin