Experience teaches.. but those who take correction

It's said experience is the best teacher. If you enroll for these practical lessons, you will mostly likely fail at many tests. Your success depends on how you will respond to the failure. Thomas Edison is an inspiration when it come to trying again as many times as it takes to succeed even in the face of devastating failure.

So "WE EITHER WIN OR WE LEARN". With Thomas Edison's SUCCESS in mind we must also take CAUTION from him

Dally made himself an enthusiastic human guinea pig for the fluoroscopy project and was exposed to a poisonous dose of radiation. He later died of injuries related to the exposure. In 1903, a shaken Edison said: "Don't talk to me about X-rays, I am afraid of them."^[83] -    Wikipedia