What do you mean, let bygones be bygones, clear love and hate?

Mutually assured destruction Clear thinking requires us not to indulge in past achievements, forget success and adjust ourselves to new changes. Love and hate are accidental, and settling the past means that it never happened. Now we can love everything and hate everything, and our feelings are so casual, let nature take its course, and everything doesn't matter. This sentence expresses the abandonment of the feelings between two people.