Beyond Good and Evil by Friedrich Nietzsche Chapter 9 Page 40

The greater the danger, the greater is the need of agreeing quickly and readily about what is necessary; not to misunderstand one another in danger — that is what cannot at all be dispensed with in intercourse. Also in all loves and friendships one has the experience that nothing of the kind continues when the discovery has been made that in using the same words, one of the two parties has feelings, thoughts, intuitions, wishes, or fears different from those of the other. (The fear of the “eternal misunderstanding”: that is the good genius which so often keeps persons of different sexes from too hasty attachments, to which sense and heart prompt them — and NOT some Schopenhauerian “genius of the species”!) Whichever groups of sensations within a soul awaken most readily, begin to speak, and give the word of