Life is not long

Life is not long
As you may think;
Life is short;
Quite short;
If you waste time,
Before long
You will find yourself
Crossing the line
Into old age;
When you haven’t done much;
Time is precious;
Make a use of it;
Exploit it;
Maximize it;
Give no excuse;
Younger people than you
Are doing things;
Do things!
Life is short.