Discipline

My teacher ever gave me some guess;
"what am I? I can give good effect to you, but I can also give bad effect to you." ?? i am very confused to answer that guess. What is it? a friendship? food? character? or what?
When that time, not only me who be muzzy for that question. I am and my class mates ask each other. "we don't know.." finally that's what comes from our mouths. "u really don't know?" my teacher try to arouse our curiosity. "yes.. really" we answered with impatience, eager to know what the answer of that guess. "ok.. i will give u what the answer is" our teacher said. "the answer is.. HABITUDE. Yeah, truely, a habit is something don't have a power, its just objects that won't be without our made. But be very aware!
Once we have the habit, its will control our lives. And its also became part of our essence, won't liberated. Its will become stronger when we nurture it, times to time." my teacher explained at length.
"o.." we just can said "o" while nod and nod our heads signed we are happy of just science we got. LOL
Then, plant a good habit such as self-discipline, diligent, honest, etc. May its gives you the power of good as well :-) Amin. Whereas on the contrary, has a bad habit will against the scourge of its owner.