人之初：At the beginning of life,
性本善： Sex is good..
性相近： Basically, all the sex are same.
習相遠： But it depends on how you do it.
苟不教： If you do not practice all the time,
性乃遷： Sex will leave you.
教之道： The way of learning it
貴以專： It is very important to make love with only one person.