Solve the riddle:
What is it which builds things up?
Lays mountains low?
Dries up lakes, and makes things grow?
Cares not a whim about your passing?
And is like few other things, because it is everlasting?
What is it?

Below you will find a hint and the correct answer to the riddle.
Little hint:
Show Hint
Hint: T*m*.
Right answer:
Show answer
Answer: Time.