…There is no morality that alone makes moral, and every ethic that affirms itself exclusively kills too much good strength and costs humanity too dearly.
The deviants, who are so frequently the inventive and fruitful ones, shall no longer be sacrificed; it shall not even be considered infamous to deviate from morality, in thought and deed; numerous new experiments of life and society shall be made; a tremendous burden of bad conscience shall be removed from the world – these most general aims should be recognized and promoted by all who are honest and seek truth.

From The Dawn, Aphorism 164, first published in 1881.