"The cynic says, "One man can't do anything." I say, "Only one man can do anything.""

The quote from John W. Gardner expresses the difference in mindset in between a cynic and an optimist. The cynic believes that change or development can just be made through cumulative action, which specific efforts are futile. On the other hand, the optimist acknowledges the power and potential of a bachelor to make a difference. The quote challenges the belief that a person individual can not make a distinction and affirms that only one individual can truly cause modification. It encourages people to act and not wait on others to blaze a trail, as small actions can result in significant impact.