A person who never made a mistake never tried anything new
According to this beautiful quote by Albert Einstein, its explanatory that everyone who takes a new step everyday is susceptible to making errors. Errors are what sums up and make a hero. Consistent trials will enable the former to learn new things and so those who do not attempt to make trials certainly do not make mistakes cos there was no action taken. Only those who try can make mistakes. I will end this by saying this popular chemistry quote
For every action, there must be an equal or opposite reaction
So if there was no action of trying new things, there won't be a reaction of nothingness