Jaynes (1976) suggested that task persistence is a uniquely human strength. With some exceptions, most animals do not persist at any given task longer than 20 minutes before moving on to the next task.

-Christopher Peterson

Select a background
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image
Awesome background image

More quotes by Christopher Peterson