"If a person comes to me, but will not leave his father, mother, wife, children, brothers, or sisters, then that person cannot be my follower. A person must love me more than he loves anything--even his own life!
If you wanted to build a building, you would first sit down and decide how much it would cost. You must see if you have enough money to finish the job.
If you don't do that, you might begin the work, but you would not be able to finish. And if you could not finish it, then all the people watching would laugh at you.
"If a king is going to fight against another king, first he will sit down and plan. If the king has only 10,000 men, he will plan to see if he is able to defeat the other king that has 20,000 men.