Friedrich Nietsche, the famous German philosopher, said that a man in love is useless because he is unable to think clearly. But then again, Nietsche always was rather negative. I think the two, love and reason, can peacefully coexist.

It could be if love took Shakespeare's blind path " love is blind----etc) ,it then would be an irrational feeling, momentary attraction, irresponsible desire etc ..

i did not realize that they were sworn enemies. who first suggested that idea?

szia, no! If you want details ask me. :)