If you first don’t succeed, try try again!

Answer by Rohan Garg:

When nothing seems to be working, I go to a stone mason and watch him at his work hammering rock again and again at least 100 times without even as much as a dent in it. Yet at the 101 strike the stone split into two and I know it wasn’t that strike to split it but the ones that went before it ! – Power Of Perseverance

What is the best motivational line ever said by someone?