I am your constant companion, I am your greatest helper or your heaviest burden.

 
I will push you onward or drag you down to failure.

I am your command.

Half of the tasks that you do you might just as well turn over to me and I will do them quickly and correctly.

I am easily managed. You must merely be firm with me.

Show me exactly how you want something done. After a few lessons, I will do it authomatically.

I am the servant of all great people, and the regret of all failures as well. Those who are great, I have made great.

Those who are failures, I have made failures.

I am not a machine but I will work with all its precision plus the intelligence of a person.

Now you may run me for profit or you may run me for ruin. It makes no difference to me.

Take me, train me, be firm with me and I will lay the world at your feet. Be easy with me and I will destroy you.

I am called Habit!