Not only virtue, but also ...

Not only virtue, but also insight, not only sanctity but also wisdom, are the duties and tasks of mankind.
Not only virtue, but also insight, not only sanctity but also wisdom, are the duties and tasks of mankind.
 Otto Weininger

More phrases

If one does not know to which port one is sailing, no wind is favorable.
What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.
We are masters of the unsaid words, but slaves of those we let slip out.
I have always found that mercy bears richer fruits than strict justice.
A lie gets halfway around the world before the truth has a chance to get its pants on.

Quotes from the same author

Man is alone in the world, in tremendous eternal isolation. He has no object outside himself; lives for nothing else; he is far removed from being the slave of his wishes, of his abilities, of his necessities; he stands far above social ethics; he is alone. Thus he becomes one and all.
 Otto Weininger
In order to depict a man one must understand him, and to understand him one must be like him; in order to portray his psychological activities one must be able to reproduce them in oneself. To understand a man one must have his nature in oneself.
 Otto Weininger
As the mental endowment of a man varies with the organisation of his accumulated experiences, the better endowed he is, the more readily will he be able to remember his whole past, everything that he has ever thought or heard, seen or done, perceived or felt, the more completely in fact will he be able to reproduce his whole life. Universal remembrance of all its experiences, therefore, is the surest, most general, and most easily proved mark of a genius.
 Otto Weininger
I regret that I must so continually use the word genius, as if that should apply only to a caste as well defined from those below as income-tax payers are from the untaxed. The word genius was very probably invented by a man who had small claims on it himself; greater men would have understood better what to be a genius really was, and probably they would have come to see that the word could be applied to most people. Goethe said that perhaps only a genius is able to understand a genius.
 Otto Weininger
Mankind occurs as male or female, as something or nothing. Woman has no share in ontological reality, no relation to the thing-in-itself, which, in the deepest interpretation, is the absolute, is God. Man in his highest form, the genius, has such a relation, and for him the absolute is either the conception of the highest worth of existence, in which case he is a philosopher; or it is the wonderful fairyland of dreams, the kingdom of absolute beauty, and then he is an artist.
 Otto Weininger