Who am I?

I am your constant companion.

I am your greatest asset or heaviest burden.

I will push you up to success or down to disappointment.

I am at your command.

Half the things you do might just as well be turned over to me,

For I can do them quickly, correctly, and profitably.

I am easily managed, just be firm with me.

Those who are great, I have made great.

Those who are failures, I have made failures.

I am not a machine, though I work with the precision of amachine and the intelligence of a person.

You can run me for profit, or you can run me for ruin.

Show me how you want it done. Educate me. Train me.

Lead me. Reward me.

And I will then...do it automatically.

I am your servant.

Who am I?

I am a habit.

-- Author Unknown