Humbleness is a curse or a blessing?
It’s a curse when people look down upon you. It’s a blessing when they value your worth. 99% of the people feel you are unworthy, weak, moronic when you are humble. That’s the reason you find very few of them.
What should motivate you to be humble?
Mere reason that you should respect every single person either for his/her knowledge, or position, or age motivates you to be humble. And respect will be earned only when you respect others.