Well, I'll add a riddle then.

I have a beginning, but no end
I can bring down the mightiest warrior,
or the smallest insect.
I nuture the young and kill them afterwards
No one can kill me
No one can escape me
No one can outlast me
Even the mighty pyramids wont stand against me
I am never ending and bring an end to life, yet few fear me.

What's the answer?