Totally true,this is by far the greatest trait we have,very few people can withstand the shit we go trough,all that pain has made us stronger and therefore,more disciplined,kinda similar to soldiers in ancient times.Also,as a religious person i must say that our inceldom is a consequence of our bad choices/actions in the past life,hence all the pain we suffer is actually a test to become better men and have a better life after our deaths in this timeline,we have come to learn what pain feels like in order to be better.People like Hitler were not only pushed to the limit but also inspired by their harsh lives to become better.It is crucial we follow their example in order to achieve things that will leave a legacy in this world and make it better