The Ego And His Own - pg. 88

The case of morality is like that of the family. Many a man
renounces morals, but with great difficulty the conception,
"morality". Morality is the "idea" of morals, their intellectual
power, their power over the conscience; on the other hand,
morals are too material to rule the mind, and do not fetter
an "intellectual" man, a so-called independent, a "freethinker."