Authors:

The past is history written in stone that can't be altered. The future is transitory and never guaranteed. Today is the only thing you can alter for certain. Make the most of it.

Sherrilyn Kenyon (2012). “Born Of Silence: Number 5 in series”, p.160, Hachette UK
The past is history written in stone that can't be altered. The future is transitory and never guaranteed. Today is the only thing you can alter for certain. Make the most of it.