Courtly love:

1. Thou shalt not knowingly strive to break up a correct love affair that someone else is engaged in.
2. Thou shalt keep thyself chaste for the sake of her whom thou lovest.
3. Thou shalt not chose for thy love anyone whom a natural sense of shame forbids thee to marry.
4. It is not proper to love any woman whom one would be ashamed to seek to marry.
5. Being obedient in all things to the commands of ladies, thou shalt ever strive to ally thyself to the service of Love.
6. In giving and receiving love's solaces let modesty be ever present.
7. Thou shalt not be a revealer of love affairs.
8. Thou shalt be in all things polite and courteous.
9. In practising the solaces of love thou shalt not exceed the desires of thy lover.
10. Marriage is no real excuse for not loving.
11. No one can be bound by a double love.
12. That which a lover takes against the will of his beloved has no relish.
13. Boys do not love until they reach the age of maturity.
14. When one lover dies, a widowhood of two years is required of the survivor.
15. A true lover does not desire to embrace in love anyone except his beloved.