# My three children define me

My three children define me.
Without them I am nothing.
My most active child is constantly busy.
My second child stays the same but is always growing. I just don't know about my third child.

Who am I?

• +1. This might be better: "My most active child is constantly busy." "My second child stays the same but is always growing." and "And I just don't know about my third child". I would swap the first and second children because the one has to come before the other. – bgmCoder Apr 8 '15 at 0:30
• @BGM I really like your suggestions so the riddle has been revised accordingly. Thank you. – Michael Rize May 29 '15 at 6:29

Father Time

The three children are:

Past time, Present time, and Future time

Explanation:

Without them I am nothing:

Father Time cannot exist without time itself.

My most active child is a doer:

The Present is always working

My third child is a mystery:

The Future is a mystery to everyone

My first child is the opposite of the third:

The Past has already happened; the Future has not.

• Bravo! This was solved much faster than I thought. – Michael Rize Feb 17 '15 at 2:13