Usually, when life becomes difficult, you feel like you can not go any further.
It is these moments that you need to be inspired by the power and achievements of others with many sacrifices.
Below are some of the silent "heroes" who face challenges every day, but however they made it!
The legs of the cyclist, Paweł Poljański after 16 runs on the Tour de France
John Bramblitt is a blind painter who performs wonderful artwork
Maria Lorena Ramirez is a winner of the 50-mile marathon in Mexico. She ran with sandals.
Maule Dhan returns to the camp after searching for honey
Ted Rammel, a surgeon who operates in the chair for people with disabilities
9 year old Daniel Cabrera using McDonald's light to do homework.
100-year-old Fauja Singh is the runner who holds the Guinness World Record for running the marathon for 8 hours, 25 minutes and 18 seconds, becoming the oldest runner to reach this distance.
Doctors relaxing after a 32-hour operation to remove tumor from a patient's brain.
Aaron Fotheringham doing skateboard in a chair for people with disabilities
A Filipino teacher who has to go through a crummy river every day to go to school
Vanessa Low, champion
Environmentalist Jadav Payeng who has planted trees for 37 years, today he has a forest of 550 hectares