The man, who is sanely ascetic seeks a discipline which aids the ideal he has personally set before himself.

He may still remain theoretically in harmony with the universe to which he belongs.

But to pour contempt on the sexual life, to throw the veil of "impurity" over it, is, as Nietzsche declared, the unpardonable sin against the Holy Ghost of Life.
There are many who seek to conciliate prejudice and reason in their valuation of sex by drawing a sharp distinction between "lust" and "love," rejecting the one and accepting the other.

It is quite proper to make such a distinction, but the manner in which it is made will by no means usually bear examination.

We have to define what we mean by "lust" and what we mean by "love," and this is not easy if they are regarded as mutually exclusive.